What Is Video on Demand (VOD)?

Video on demand (VOD) is content you can start whenever you want, rather than at a scheduled broadcast time. Instead of joining a programme already in progress, you pick a title from a library and press play — and you can usually pause, rewind and resume.

VOD vs live TV vs catch-up

	Live TV	Catch-up	Video on demand
When it plays	On a fixed schedule	After it has aired, for a limited time	Any time
How you find it	Channel list or guide	Guide (past programmes)	Library categories and search
Pause / rewind	Limited (depends on player)	Usually yes	Yes
Availability window	Live only	Typically recent days	While it's in the library

Many IPTV services offer a mix of all three. What's included varies by provider and plan, so check the details for any service you're considering.

How VOD works technically

VOD files are stored on the provider's servers. When you press play, your player requests the file and streams it, usually downloading a little ahead to keep playback smooth. Because the whole video already exists, the player can jump to any point — which is why seeking works so easily compared with live TV.

VOD is often delivered using the same kinds of formats as live streams, such as HLS, or as complete video files streamed over HTTP. See IPTV streaming protocols.

How VOD appears in a player

How a library looks depends on your player app, not the provider. Common layouts include:

• Movies and Series as separate sections
• Categories (genres, collections or other groupings)
• Posters, descriptions and ratings, where the provider supplies that information
• Season and episode lists for series
• "Continue watching" to resume where you left off

With an Xtream Codes login, many players load the VOD library automatically with artwork and details. With a plain M3U playlist, on-demand titles may simply appear as long lists of items. The differences are explained in the M3U and Xtream explainer.

What affects VOD playback

• Bandwidth: high-resolution titles need more bandwidth. See our connection speed checklist.
• Device decoding: some files use codecs (such as HEVC) that older devices may not decode smoothly.
• Player settings: switching between hardware and software decoding can fix playback that stutters or has no sound. See how to configure an IPTV player.
• Audio and subtitles: many players let you choose audio tracks and subtitles when the file includes them.

Common VOD questions

Why does a title start but then stop? Often a temporary connection issue or a format your device struggles with. Try another title to compare, then check the buffering guide.

Why is there no sound on some titles? The audio format may not be supported by your device or player. Try switching the audio track or decoder setting, or see audio and video out of sync.

Why can't I find a title that was there last month? Libraries change over time as content is added and removed.

Summary

Video on demand lets you watch from a library whenever you choose, with pause and rewind. It's delivered from stored files, displayed by your player app, and shaped by your bandwidth and device. See what content types are part of an IPTV Apollo subscription on our channels & content page.