Before changing settings, remember that a Samsung TV does not store IPTV channels by itself. The TV starts an app, and the app reads a playlist plus programme data from an external source. That is why many first-run issues are not caused by the TV at all, but by a mistyped link, an outdated app or unstable network settings. Start with the basics: check internet access on the TV, update the firmware, restart the router and make sure date and time are automatic. If the clock is wrong, EPG and catch-up may behave oddly even when the playlist is valid.
Setup order
On Samsung Smart TV you usually install a player from Smart Hub, or use a compatible manual installation path for older models where the store no longer shows the needed app. In the player, find the section for adding a playlist, profile or provider. Paste the link completely and avoid hidden spaces before or after it. If the app asks for a separate EPG URL, add it only when such a URL was actually provided. Many modern playlists already include programme data, and adding another guide source can create duplicates or mismatched schedules.
After saving the profile, do not change ten settings at once. Let the app load the channel list, open several groups and check that channels switch without a long delay. Then open the programme guide. A healthy EPG should show programme names, start times and at least the current day schedule. If channel names are visible but the guide is empty, refresh the source inside the app first. If that does not help, check the TV timezone and the time-offset setting inside the player.
EPG and catch-up
Catch-up and rewind depend on the app, subscription and specific channel. Not every channel has the same archive depth, so test it deliberately: open a channel where catch-up is expected, choose a programme from yesterday or the day before, and start playback. If catch-up starts but audio or video drifts, try another decoding mode in the app. If nothing opens, check whether a router-level VPN or custom DNS is blocking access to the media server.
The final checklist is short: favourite channels are saved, EPG shows schedules, catch-up opens on a known test channel, and the app starts correctly after the TV has been powered off. Only after that does it make sense to fine-tune sorting, buffer size and list appearance. This order saves time because you confirm the basic stream first and polish the interface later.