Movies
Conversation like television set on honeymoon: unnecessary.
— Sidney Wang · Murder by Death

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
It's a dry joke in clipped, broken phrasing. Talking is compared to a television switched on during a honeymoon: both are pointless because the couple already has better things to attend to. The humour lies in the blunt comparison, delivered as though it were obvious.
Context reviewed