TV: 65" Sky Glass Gen 1 (One of the unfortunate ones to be an early adopter)
Steps to replicate:
1. Navigate to Playlist
2. Select any program
3. Play any item on the playlist
4. Once it starts playing, press back on the Sky Glass remote (Common use case, if what you are playing is not the correct episode)
5. TV screen goes blue for about 10 or so seconds
6. TV powers off
Workaround: Replace Step 4 with pressing Home instead, and then repeat from step 1 to switch to something else from playlist - Super annoying. . . Basic UI navigation gone wrong. . .
