One of two things happen:
(1) It’s a close game, which means that you sit there watching for an hour before it gets exciting in the last quarter, or (more likely) the last minute
(2) It’s a blowout, in which case you sit there waching for more than an hour just waiting for it to end.
I think I watched my first televised basketball game in its entirety the other night — Game 6 of the Celtics-Lakers matchup.
Glad the Celtics won of course. But it was a #2.