Giving daddy his own man cave/den/tv would fix the media choice problem/relaxing alone, but it would not actually fix the "he needs to be thinking about his kids' needs sometimes" problem.

that's true. (also why I think, in the 'dad goes somewhere else' solution, that 'somewhere else' needs to be the objectively shittiest place on the property. if he chooses to absent himself from his parenting responsibility, he doesn't get to be comfortable doing it.)

(I loathe the entire concept of the man cave. it so often becomes 'place where dad goes because he's mad being a husband/father comes with responsibility that cuts into his leisure time' and a space/excuse for them to shirk household chores)