According to Good Housekeeping, Peggy Post, a director of the Emily Post Institute: Yes, but maybe, not.
Question: During Thanksgiving dinner, your father-in-law insists on watching football. You feel this detracts from family quality time. Do you shut the TV off?
Answer PEGGY SAYS: As hostess, your role is to make everyone feel comfortable. For your father-in-law, comfort means watching the game. Strike a compromise — shut the set off during dinner, but let him (and others) watch beforehand and afterward. Or, plan to serve the meal during halftime. It’s up to you to find the right balance for all your guests.
Peggy Post has written 10+ books on etiquette issues.