For many fans all over the country, not just Gopher fans, if the announcer isn't biased toward my team (which I will hear as very fair and even-handed commentary) they are completely biased toward the other team.
I agree with the above about Shimmy. Maybe not a great commentator, but I've never thought she was biased. I thought she was pretty complimentary about our Gophers last night, but, as she should, also pointed out Nebraska highlights.
I'm still shocked and surprised that a TV commentators opinions and observations bothers so many people so much. I'm also convinced that many (maybe not all) of the people who complain about it the most, don't have nearly the sports knowledge or insight that most of these commentators have. After all, most of them are former players or coaches who actually spend a lot of time talking to coaches/players they'll be covering that night and actually observe practices and shoot-arounds, either on gameday or the day before, to see what the coaches are actually telling their players.