When to play: the dessert gap
The best slot is right after the main meal, while dessert gets ready. People are still at the table and nobody has to cook. A one-line round takes about 15 calls, five minutes or so. A blackout takes nearly all 40 words, about 10 to 15 minutes, which is how long a pie needs to cool.
Plan for two or three rounds. The first one teaches the rules, the second gets competitive, and by the third someone's uncle has announced he's never lost at bingo.
At the kids' table while the turkey rests and the adults argue about gravy.
A round for everyone who came for the food, not the football.