Rather than picking a new movie or show, go with re-watching something. I've had some nasty surprises with new shows that hit a sore button unexpectedly, so my choice now is to pick something that I can quote large chunks of dialogue from, and use that familiarity as part of the de-escalation of stress.

I haven't seen every episode of Bob Ross, but I /know/ that he's as consistent as Mister Rogers, and I wouldn't hesitate to throw in an unknown episode of either show.