Like Brutus, it varies by sport for me.
CFB:
This is my main sport to watch/follow. I've left a few games early but mostly that was due to one of two factors:
- Weather and/or being there with someone who was uncomfortable staying.
- Because the Buckeyes were up by 20+ and we wanted to get a head start on the traffic out.
I've never left a game early because the Buckeyes were getting crushed. I sat through every last minute of their loss in Arizona to OAM's team (to be fair, I was there with a tour group and the bus wasn't leaving until after the game anyway but I stayed in the stadium until the bitter end). I've sat through some other bad losses as well.
NFL:
I liked NFL football and back before the Browns moved I was a big Browns fan. When they moved it just brought home the "this is a business" aspect of it to me. I realize that CFB is a business as well, but I KNOW that at least the Ohio State University is never going to pack up and move to another state.
When the Browns moved I guess I just decided that they were a product and, as a consumer, I'll watch if the product is worth watching. In the ~20 years that the Browns have been "back" I think there were one or two years in which the put a product on the field that was worth watching.
NBA:
This is a sport in which literally more than half of the teams make the playoffs. Seriously, unless they added a team and I didn't notice, they have 31 teams and 16 playoff spots. IMHO the entire regular season and the first round of the playoffs are a complete waste of time. I cannot remember the last time that I watched an entire NBA regular season game, maybe never. The first round of the playoffs isn't much better. The #7 and #8 seeds universally do not belong in the postseason so the 1/8 and 2/7 series are worthless. The 3/6 and 4/5 series are generally better but even there, the 4/5 winner basically never beats the #1 anyway so who really cares? Here is my NBA watching plan:
- Regular season: I don't watch or even follow the standings.
- Playoff first round: I follow how the Cavs are doing if they are in it and if it is VERY convenient I'll watch a game or two.
- Playoff second round: I watch most of the games if the Cavs are in it.
- Conference Finals: If the Cavs are in it, I watch every game.
- NBA Finals: If the Cavs are in it, I watch every game.
MLB:
I love to go to a baseball game once in a while but I have literally never watched an MLB regular season game on TV. I would make an exception if the Indians were in a really tight race but I wouldn't make the exception until it got to the point that the regular season games were effectively playoff games. If the Indians are in the playoffs, I watch every Indians playoff game. If not, I don't watch nor even care or check who won after the fact.
In my entire lifetime the only WS games that I have watched have been the ones the Indians were in.