LIVETV WATCH (Myth Protocol)
From MythTV Official Wiki
LIVETV_WATCH
Arguments
Event String: <recorder number> <boolean recording_is_active>
Additional: empty
Examples
46 BACKEND_MESSAGE[]:[]LIVETV_WATCH 1 0[]:[]empty
Description
This event is used to manage program breaks while watching live tv. When the guide data marks the end of one show and the beginning of the next, which will be recorded to a new file, this instructs the frontend to terminate the existing playback, and change channel to the new file.