The channel in Plex.
From here you can select live TV, see the schedule recordings, or watch a recorded show.
From here you can see the channel line up.
If you select a channel you will see what's on now and what coming up.
If you select the current showing program, it will allow you to record it or watch it live.
If you go into the recorded show list, you will see all your recordings. If you select one you will have the option to watch it or delete it.