For a guest to dictate what is watched on tv is rude on a major holiday IMO. At least at my parents' home, yes the football will be on at thanksgiving as we live in Michigan, and it is tradition to watch the Detroit Lions that day play regardless of their record. But, before people retire to the living room which is near the table area, we say grace, people actually sit and eat at the table and talk to one another. A few people who are in viewing distance can give a quick score update as most everyone present at the table is interested. After everyone has at least one plate full of food, then people make their way to the living room to watch the game. Usually me and my sister start the clean up process, and my parents sometimes get involved, and the more that pitch in, the fast things get done then all can go watch the game.