IPTV comes with its own vocabulary that's confusing when you first encounter it. This glossary covers every term you'll encounter when setting up or troubleshooting an IPTV subscription.
Core Terms
M3U: A playlist file format containing stream URLs. Your IPTV provider gives you an M3U URL that your player reads to get the channel list.
Xtream Codes: A server management system used by providers. You get a server URL, username, and password instead of a single M3U link.
EPG: Electronic Program Guide — the TV schedule overlay showing what's currently on and what's coming next. Sourced from an XMLTV file.
XMLTV: The file format used for EPG data. Contains schedule information for each channel.
VOD: Video on Demand. The movie and TV series library, separate from live channels.
Technical Terms
H.264/AVC: The most common video codec for HD IPTV streams. Compatible with all devices.
H.265/HEVC: The codec used for 4K streams. Requires hardware decoding support on your device.
HW decoding: Hardware decoding — using your device's dedicated video chip rather than the CPU for stream processing. Eliminates buffering on 4K.
Bitrate: The data rate of the stream in Mbps. Higher bitrate = better quality = more bandwidth required.
Catch-up: A feature that stores past broadcasts for replay within a set window (usually 7 days).
Provider Terms
Connections: The number of simultaneous streams your subscription allows.
Panel: The provider's management system (usually Xtream Codes panel).
Reseller: A provider who buys wholesale from a larger provider and resells. Quality varies widely among resellers.
For applying this knowledge to find the right provider, IPTV service with 4K channels provides practical guidance alongside the technical explanations.
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