An EPG is schedule data supplied by the service or imported separately, then interpreted by the player.
The idea in plain English
An EPG is schedule data supplied by the service or imported separately, then interpreted by the player.
When it matters
For a UK viewer, IPTV EPG and TV guide affects the decision before choosing a period or device. Check the current time zone and whether the player successfully refreshed its guide. Record what happened on the real setup rather than relying only on a sales description.
A useful boundary
Assuming an empty guide means the video stream is down. A page can introduce an option, but the current supplier terms and actual device test determine what you receive.
What to do next
Open the relevant brand page and check the original supplier information before ordering. For a technical issue, write down the device, player, connection and one reproducible example. For a price question, ask for the full charge in the currency you will pay.