Here is something I have noticed personally. I was on Campus from 1974 to 1977 and saw two of the greatest teams of all time including the 1976 Championship. For me, up until about 7 years ago, an IU Game was must see TV and you planned your time around it. Now it has become if it fits my schedule, I may watch.
The past two Saturdays, I was out running errands, and missed most of the first half of each game, and didn't really care, this Saturday I got home just before the half, and took a 10 Minute catnap in the Second Half as I was watching.
Maybe it's my age, maybe it's that they have just become unwatchable. The other aspect is with the number of games played, and the number of teams that make the Tournament with Mediocre Records. For God Sakes, people are still talking about if we win the last 2 games, and a first round game in the Conference Tournament, we should get into the Tournament.
Interestingly enough, I am just the opposite with IU Football. Unless I am attending a Funeral. Wedding, or at the ER with a close family member, I make the time to watch the Game. In Football, each game is significant and there are no do overs or we will get them next time. You can't get to anything significant if you play 500 in Football.