15 IPTV terms explained simply

Every hobby has its own vocabulary, and IPTV is no exception. The first time you see "load your M3U" or "check the EPG," it can feel like everyone got a glossary you missed. The reassuring truth is that these words describe simple ideas — once someone explains them in plain language, they stop being jargon and start being useful. Here are 15 of the most common terms, grouped so they actually make sense together. For an even quicker reference later, our glossary keeps short definitions handy.

The basics: IPTV, streaming, VOD

IPTV (Internet Protocol Television) is simply TV delivered over your internet connection instead of an aerial, satellite or cable. Streaming means the video plays as it arrives, rather than downloading fully first. And VOD (video on demand) is the on-request library — films and series you start whenever you like, instead of waiting for a broadcast time. Together these three describe the whole shape of modern TV: over the internet, playing live, with a library on the side.

Guide and playback: EPG, catch-up, timeshift

The EPG (electronic program guide) is the on-screen channel guide showing what's on now and next. Catch-up lets you watch programmes after they aired, usually a few days back. Timeshift lets you pause and rewind a live broadcast. Notice how these build on each other: the EPG is the map, and catch-up and timeshift are the time-travel buttons that make the schedule bend around you.

Loading channels: M3U, Xtream Codes, playlist

This trio confuses newcomers most, so here's the plain version. A playlist is just the list of channels you can watch. An M3U is one way to load that list — a link or file you enter once. Xtream Codes is another way — a login made of an address, username and password. They're two routes to the same destination: getting your channels into the app. Our M3U playlist guide goes deeper if you want it.

Quality: SD/HD/4K, bitrate, buffering

SD, HD and 4K describe resolution — how sharp the picture is, from standard up to ultra-sharp 4K. Bitrate is how much data describes that picture each second; more of it means detail holds up in fast or dark scenes. Buffering is the familiar one: the picture pauses to load more data, usually because the connection briefly couldn't keep up. Resolution is the label, bitrate is the substance, and buffering is what you feel when the data runs short.

Devices: stick, box, set-top box, app

An app is the software you watch in. A stick is a small device that plugs into an HDMI port and runs that app. A box (or set-top box) does the same job with more power and storage. The simple takeaway: the app is where you watch, and a stick or box is just a way to run the app on a TV that can't do it alone.

Where to find more terms

Fifteen words cover almost everything you'll meet in your first weeks, and the rest you'll pick up naturally as you go. When a new term does crop up, our glossary has a short definition ready, and if you're just getting started, the beginner's guide ties these words to the actual first steps. Feeling fluent already? Compare plans and order IPTV Nordic to put the vocabulary to use.