Deconstructing the EXTINF Tag
In `#EXTINF:-1 tvg-id="CNN" group-title="News",CNN`, the `-1` sets the duration, EPG parameters map to tvg-id, and category maps to group-title.
Importance of the Comma Separator
The comma (,) after the EPG attributes is mandatory. It acts as the separator telling the parser that the channel title starts immediately after it.
Custom EPG Parameters
Other attributes like tvg-logo define the channel icon URL, tvg-country defines the regional code (like US or UK), and tvg-chno defines the channel number.
Avoid Quotes in Title Names
Do not write channel names inside quotes (e.g. ,"CNN"). The comma designates the title boundary, and quotes will display literally in the player list.