I'm in the Chicago area and had the ability to experience Big Ten Network on two different systems. At home, I have AT&T U-Verse and had to set the game to record since we had a party to go to.
At the party, they have Comcast and I was not impressed. Comcast carried only one BTN game in HD and it was not the Nebraska game. Like someone else said, the SD channels was highly compressed and looked awful. Is that the ball or a bug on the camera?
I watched the game in full from my U-Verse recording and it was great. It looked like with U-Verse, all games were carried in both SD and HD. And, no $45 pay per view like I had to deal with in the past