If the Yankees are playing, and I'm near a TV, I'm watching the game. If I'm near a radio, I'm listening to it. If all I have is my computer or phone I'm following it on Gameday. Same goes for playoff games and the World Series, no matter who's playing. I'm a little less intense about football, but I do try to watch every Giants game, and being in the South got me into college football. I'll be watching a lot more of that going forward.
As far as playing, I think flag football is a blast.