Settings/Live TV/General
PVR Manager
Disable 'Connection lost' warnings - Hide the warning if Kodi lost the connection to the backend (for example: if the backend service died)
Channels
Synchronise channel groups with backends - Imports channel groups from the backend (if supported by the add-on and backend). Will delete user created groups if they're not found on the backends.
Use the channel order from the backend(s) - Sorts the channels by channel number on the server, but uses Kodi's own numbering for channels.
Use channels numbers from backend
Channel manager - Opens the channel manager, which allows modifying the channel order, channel name, icon, etc.
Group manager -
Search for channels - Instruct the backend to search for channels (if supported by the add-on and backend)
Clear data -