Streaming Reviews & Recommendations Glossary
80 terms defined. An authoritative reference for Streaming Reviews & Recommendations.
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1080p HD (Full HD)
A video resolution of 1920×1080 pixels, the standard for most streaming platforms on non-premium tiers. 1080p delivers a sharp, cinematic image on displays up to 55 inches and requires approximately 5–8 Mbps for streaming.
4K UHD (Ultra High Definition)
A video resolution standard of 3840×2160 pixels, four times the pixel density of 1080p HD. 4K streaming requires a 25+ Mbps internet connection and a compatible display; Netflix, Disney+, and Apple TV+ offer 4K on premium subscription tiers.
720p HD
A video resolution of 1280×720 pixels used on basic subscription tiers or mobile streaming to conserve bandwidth. While noticeably less sharp than 1080p on large screens, 720p is adequate for smartphones and tablets and requires only 2.5–4 Mbps.
A
Account Sharing Policy
A platform's official rules governing who can access a subscription account and on how many devices. Tightened account sharing policies, pioneered by Netflix, have reshaped industry expectations and revenue models across competing services.
Adaptive Bitrate Streaming (ABR)
A streaming technology that continuously monitors network bandwidth and device capabilities to deliver the highest quality video the connection can support, automatically switching between quality levels. ABR eliminates the need for users to manually select quality settings.
Animated Series
Television programming produced through animation techniques rather than live action, spanning all age groups and genres. Animated content is expensive to produce but generates extremely high viewer loyalty and lucrative merchandising opportunities.
Anthology Series
A format where each season or episode features a completely different story, setting, and cast, with no narrative continuity between installments. Examples include American Horror Story and Black Mirror; the format allows experimentation within a consistent brand.
Aspect Ratio (16:9)
The ratio of video width to height. The 16:9 widescreen standard dominates streaming and broadcast; older content in 4:3 (standard definition) or 2.39:1 (cinemascope) may display with black bars on modern displays. Incorrect aspect ratios are a common streaming quality complaint.
Audio Description
A narrated accessibility track that verbally describes on-screen visual action, setting, and text for blind or visually impaired viewers. Audio description is increasingly mandated by regulators in the US, UK, and EU; availability varies across streaming catalogs.
Autoplay
A feature that automatically begins playing the next episode in a series (or a recommended title) after the current one ends, without user input. Autoplay is credited with increasing binge-watching behavior; regulators have scrutinized it in the context of children's viewing habits.
AV1
An open-source, royalty-free video codec developed by the Alliance for Open Media, offering compression efficiency comparable to HEVC with no licensing costs. YouTube, Netflix, and Amazon are deploying AV1 at scale; it is the likely successor to H.264 for mainstream streaming.
AVC / H.264
The most widely deployed video compression codec, used for the majority of streaming content at 720p and 1080p resolutions. H.264 offers broad device compatibility at the cost of larger file sizes compared to newer codecs like HEVC and AV1.
AVOD (Ad-Supported Video on Demand)
A free or low-cost streaming model where content is monetized through advertising rather than subscription fees. Examples include Peacock's free tier, Tubi, and Pluto TV; AVOD growth has accelerated as consumers resist rising subscription costs.
B
Bitrate
The amount of data transmitted per second during video streaming, measured in Mbps. Higher bitrates (15–40+ Mbps for 4K) produce sharper images with fewer compression artifacts; platforms dynamically adjust bitrate based on available bandwidth using adaptive streaming.
Buffering
The process of pre-loading video data into memory ahead of playback to ensure smooth streaming. Visible buffering (the spinning wheel) occurs when the incoming data rate falls below the playback rate, typically due to insufficient bandwidth or server congestion.
C
Carriage Fee
Payment made by a cable or satellite distributor to a content network for the right to carry its channels. As streaming disrupts traditional pay-TV, carriage fee negotiations have grown contentious, with blackouts threatening both distributors and channels.
Catalog Depth
A qualitative and quantitative measure of how extensive a streaming platform's content library is across genres, languages, and release years. Catalog depth is a key factor in subscriber retention, as it determines whether there is always something new to watch.
CDN (Content Delivery Network)
A geographically distributed network of servers that cache and deliver streaming content from locations close to the viewer, reducing latency and buffering. Netflix operates Open Connect, its own global CDN; other platforms use commercial CDNs like Akamai and Cloudflare.
Churn Rate
The percentage of subscribers who cancel their subscription in a given period. Streaming churn is seasonal (spikes after tentpole content ends) and is the primary metric platforms manage through content scheduling strategies and bundle pricing.
Compression Artifact
A visible defect in compressed video, such as blockiness, banding, or mosquito noise, caused by aggressive data reduction or insufficient bitrate. Artifacts are most visible in fast-motion scenes, dark areas, and fine textures.
Concurrent Streams
The number of devices that can stream simultaneously on a single account at the same time. Stream limits (typically 2–4) are a key subscription tier differentiator; Netflix's 2023 password-sharing crackdown made concurrent stream management a major industry topic.
Content Budget
The allocation of financial resources across original production, licensed acquisitions, and sports rights within a streaming platform's annual spending plan. Content budget allocation decisions directly determine catalog quality and competitive positioning.
Content Library
The total catalog of titles available on a streaming platform at any given time. Library size (depth) and content quality (curation) are distinct variables; a smaller, highly curated library can outperform a larger, diluted one in subscriber satisfaction.
Content Spend
The total annual investment a streaming platform makes in acquiring licenses and producing original content. Netflix's content budget exceeds $17 billion annually; content spend is the primary cost driver for streaming services and scales with subscriber aspirations.
Content Windowing
The sequential distribution of content across different platforms and formats — theatrical, premium VOD, rental, subscription streaming — each after a defined exclusivity period. Windowing strategies balance maximizing revenue per title against speed of audience reach.
Continue Watching
A personalized row on a streaming platform's home screen that surfaces titles a user has started but not finished, resuming from the last watched position. Continue Watching is one of the highest-engagement interface modules and drives session return rates.
D
DASH (Dynamic Adaptive Streaming over HTTP)
An open-standard adaptive bitrate streaming protocol (also called MPEG-DASH) used by Netflix, YouTube, and many other platforms. DASH offers codec flexibility and is platform-agnostic, unlike HLS which was originally Apple-specific.
Day-and-Date Release
A distribution strategy where a film is released simultaneously in theaters and on a streaming platform. Common during the pandemic, day-and-date releases remain used for mid-budget films on platforms like Disney+ Premier Access and Apple TV+.
Device Compatibility
The range of hardware (smart TVs, streaming sticks, game consoles, mobile devices, browsers) on which a streaming service's app runs and delivers its full feature set including 4K, HDR, and spatial audio. Broad device compatibility is a critical factor in subscriber acquisition and retention.
Docuseries
A multi-episode documentary format that explores a subject, event, or person across several installments, allowing deeper narrative development than a single film. Docuseries are among the most cost-effective content formats for streaming platforms relative to engagement generated.
Dolby Atmos
An object-based spatial audio format that places sound in a three-dimensional space, including height channels, rather than conventional channel-based surround sound. Dolby Atmos streaming is supported by Netflix, Disney+, and Apple TV+ on compatible soundbars and AV receivers.
Dolby Digital Plus (E-AC3)
An advanced surround sound format used widely in streaming, supporting up to 7.1 channels with improved efficiency over standard Dolby Digital. Dolby Digital Plus is the standard audio format for Netflix and Disney+ and can carry Dolby Atmos metadata.
Dolby Vision
A proprietary HDR format from Dolby that uses dynamic metadata to optimize brightness and color on a frame-by-frame basis, delivering superior image quality compared to HDR10 on compatible displays. Apple TV+, Netflix, and Disney+ support Dolby Vision on select content.
DTS:X
DTS's object-based immersive audio format competing with Dolby Atmos, offering flexible speaker configuration without fixed channel assignments. Less prevalent than Dolby Atmos in streaming, DTS:X is more common in Blu-ray releases and dedicated home theater setups.
E
Exclusive Deal
A licensing or first-look agreement giving a platform the sole rights to distribute specific content or binding a creator to develop projects exclusively for that platform. Exclusive deals are a key content strategy tool for preventing competitors from accessing talent or IP.
Exclusive Window
A defined period during which content is available only on one platform before it can be licensed elsewhere. Exclusive windows create urgency and justify subscriptions; their length varies from 30 days to permanent exclusivity.
F
FAST (Free Ad-Supported Streaming TV)
A streaming model delivering linear, channel-like programming with advertising, available at no cost to viewers. FAST channels (e.g., Pluto TV, Tubi, Samsung TV Plus) replicate traditional broadcast TV economics in an internet-delivered format.
Frame Rate (24fps vs. 30fps)
The number of still images displayed per second in video playback. Cinema traditionally uses 24fps for a film-like motion blur aesthetic; broadcast television uses 29.97fps; live sports are increasingly shot at 60fps for smooth motion. Higher frame rates can look unnaturally smooth ("soap opera effect").
H
HDR10
An open-source high dynamic range (HDR) standard that expands color volume and brightness range for compatible displays. HDR10 uses static metadata applied uniformly to an entire piece of content; it is the baseline HDR format supported by virtually all HDR TVs and streaming services.
HDR10+
Samsung and Amazon's open-source HDR standard that adds dynamic metadata to the HDR10 baseline, offering scene-by-scene optimization similar to Dolby Vision without licensing fees. Supported on Prime Video and select Samsung device content.
HEVC / H.265
A video compression codec offering roughly 50% better compression efficiency than H.264 at equivalent quality, making it the standard for 4K HDR streaming on Netflix, Disney+, and Apple TV+. HEVC requires more processing power for decoding and has higher licensing fees than AV1.
HLG (Hybrid Log-Gamma)
An HDR standard developed by the BBC and NHK designed for live broadcast compatibility, making it the dominant HDR format for live sports and linear streaming. HLG is backward-compatible with SDR displays, unlike HDR10 or Dolby Vision.
HLS (HTTP Live Streaming)
Apple's adaptive bitrate streaming protocol that segments video into small chunks and dynamically adjusts quality based on network conditions. HLS is widely supported across iOS, macOS, and most smart TVs, making it the dominant protocol for streaming delivery.
Hybrid SVOD
A subscription streaming service that offers both an ad-free premium tier and a lower-cost ad-supported tier, giving subscribers price flexibility. Netflix, Disney+, and Peacock all operate hybrid SVOD models following industry-wide tier additions.
L
Licensing Deal
An agreement granting a streaming platform the rights to distribute a title for a defined period and territory, without transferring ownership. Licensing deals form the backbone of non-original content catalogs; rights can return to original owners or move to competitors after expiration.
Limited Series
A narrative TV format with a predetermined number of episodes (usually 6–10) telling a complete story without expectation of renewal. Limited series attract prestige talent and generate awards attention; Netflix, HBO, and Hulu heavily invest in them.
Linear Streaming
Internet-delivered video that follows a pre-scheduled programming lineup, similar to traditional broadcast or cable TV. Viewers cannot choose what plays or when; FAST channels and live sports streams are the primary linear streaming formats.
Live Streaming
Real-time video transmission over the internet without pre-recording, used for live sports, news, award shows, and events. Live streaming is a key differentiator for platforms like ESPN+, Peacock, and Amazon Prime Video competing for sports rights.
M
Miniseries
A short narrative series (typically 2–6 episodes) adapted from a book, true story, or original concept and presented as a single, contained event. Miniseries often command higher production budgets per episode than ongoing series and are strong awards contenders.
Mockumentary
A fictional narrative filmed in the style of a documentary, using handheld cameras, talking-head interviews, and improvised naturalistic performances. The format gained mainstream popularity with The Office and Parks and Recreation and remains a reliable streaming comedy format.
O
Offline Download
A feature allowing subscribers to save titles locally to a device for viewing without an internet connection. Availability varies by platform and subscription tier; downloaded content typically has a time-limited license and cannot be moved to other devices due to DRM.
Original Programming
Content exclusively commissioned, produced, or co-produced by a streaming platform, not previously broadcast elsewhere. Originals are the primary competitive differentiator and subscriber acquisition tool for platforms like Netflix, Apple TV+, and Amazon Prime Video.
P
Parental Controls
Platform features allowing account holders to restrict content by maturity rating on specific profiles, set PIN requirements, and block individual titles. Robust parental controls are a regulatory requirement in many markets and a key selling point for family-oriented platforms.
Password Sharing
The practice of sharing streaming account credentials with people outside the primary subscriber's household. Netflix's 2023 crackdown on password sharing — converting sharers to paid accounts — added 20+ million subscribers in two quarters and became an industry template.
Prestige TV
High-quality, critically acclaimed television characterized by cinematic production values, complex storytelling, and involvement of distinguished talent. The term gained currency with HBO's early-2000s dramas and now defines the aspirational content tier that major streaming platforms chase.
Procedural Drama
A TV format where each episode presents a self-contained case or problem (crime, medical, legal) resolved within that episode, with minimal serialized storytelling. Procedurals are highly rewatchable and perform well in syndication and on FAST platforms.
PVOD (Premium Video on Demand)
A transactional model that makes new theatrical films available for home rental at a premium price point ($20–30) during or immediately after the theatrical run, before they reach standard VOD or subscription windows. Studios widely adopted PVOD during the COVID-19 pandemic.
R
Reality Competition
An unscripted format where real participants compete in challenges for a prize, combining entertainment with the perceived authenticity of real stakes. Reality competition drives high engagement and low-cost production relative to scripted content.
Recommendation Algorithm
The machine learning system that analyzes viewing history, ratings, time of day, and behavioral signals to surface personalized content suggestions. Netflix has disclosed that 80% of content watched is discovered through its recommendation engine rather than manual browsing.
S
SDR (Standard Dynamic Range)
The conventional video format with a brightness range of roughly 100 nits, used by the majority of content and displays before HDR adoption. SDR content displays correctly on all screens; HDR content tone-mapped to SDR loses some shadow and highlight detail.
Simultaneous Streams
Equivalent to concurrent streams; the number of active video streams allowed at the same time under one account. Exceeding the simultaneous stream limit produces error messages and is the mechanism services use to enforce household-based access policies.
Skip Intro
A button that appears during opening title sequences to bypass them and jump directly to the episode content. Netflix popularized the feature in 2017; it is now standard across major streaming platforms and signals a shift toward viewer-controlled pacing.
Spatial Audio
A broad term for audio technologies that create a three-dimensional sound experience using object-based mixing, head-tracking, or binaural processing. Apple TV+ and Amazon Prime Video promote spatial audio as a consumer-facing quality descriptor.
Streaming Bundle
A packaged offering combining multiple streaming services at a discounted combined price. The Disney Bundle (Disney+, Hulu, ESPN+) is the flagship example; bundles reduce churn by increasing switching costs and perceived value for subscribers.
Streaming Interface (UI)
The visual design and navigation structure of a streaming platform's applications across devices. UI quality affects content discovery, engagement, and subscriber satisfaction; poor interfaces (e.g., Peacock and HBO Max early versions) have driven notable subscriber complaints.
Streaming Latency
The delay between a live event occurring and a viewer seeing it on their streaming device. Low latency (under 10 seconds) is critical for live sports interactivity; standard streaming has 30–60 second delays, which causes real-time social media spoilers.
Streaming Protocol
The technical standard governing how video data is transmitted from servers to devices over the internet. The dominant adaptive streaming protocols are HLS (Apple) and DASH (open standard); both break video into small chunks delivered sequentially based on available bandwidth.
Subscriber Acquisition Cost (SAC)
The average marketing and promotional expense required to gain one new subscriber. Lower SAC indicates efficient marketing; it is calculated as total acquisition spend divided by new subscribers in a period and is a key metric in streaming unit economics.
Subscriber Count
The total number of paying (or active free-tier) accounts on a streaming platform, reported quarterly. Subscriber count is the dominant Wall Street metric for streaming companies; Netflix's shift to reporting revenue and engagement rather than pure subscriber counts reflects industry maturation.
Subtitles & Accessibility
On-screen text displaying spoken dialogue and relevant audio descriptions for viewers who are deaf, hard of hearing, or watching in a non-native language. SDH (Subtitles for the Deaf and Hard of Hearing) also describes non-speech audio cues; quality and language breadth vary significantly by platform.
SVOD (Subscription Video on Demand)
A streaming model where users pay a recurring fee for unlimited access to a content library. SVOD is the dominant model used by Netflix, Disney+, and Max; revenue is driven by subscriber volume rather than per-title transactions.
T
Talk Show Format
An unscripted or lightly scripted format featuring a host conducting interviews, panel discussions, or comedic segments, often with celebrity guests. Talk shows are increasingly produced as streaming exclusives to complement traditional late-night broadcast programming.
Theatrical Window
The period of exclusivity during which a film is shown only in cinemas before it becomes available on home video, VOD, or streaming platforms. The traditional 90-day window has compressed to 30–45 days for many studios as streaming demand grows.
Transactional VOD
The broader category encompassing all pay-per-transaction streaming models (TVOD and PVOD), where consumers pay for individual title access rather than a subscription. Transactional VOD complements subscription services in the streaming ecosystem.
True Crime
A documentary or narrative genre based on real criminal cases, investigations, or justice-system stories. True crime docuseries generate exceptional streaming engagement and social conversation, making them a consistent commissioning priority across platforms.
TVOD (Transactional Video on Demand)
A pay-per-view streaming model where users rent or purchase individual titles. TVOD transactions (e.g., iTunes, Vudu, Amazon Video rentals) typically occur for new theatrical releases before they enter subscription windows.
U
Upscaling
The process of increasing the resolution of lower-quality video (e.g., 1080p to 4K) using interpolation or AI-based enhancement algorithms. Upscaling can improve perceived sharpness on 4K displays but cannot recover detail not present in the source.
User Profile
An individualized account space within a shared streaming subscription that maintains separate watch histories, recommendations, and preferences for each household member. Profiles can often be PIN-protected; many platforms now restrict profiles to verified household members.