In the Seattle area, Comcast is carrying the Northwestern game instead of the Gophers and I can't find access to it. If I can find someone with Verizon/Frontier FiOS, they carry it on the overflow channel, just not in HD.
I checked the Big Ten Network website and it looks like they'll have an online internet broadcast sometime soon, but it doesn't look like it's ready yet.
What I can't figure out is why they are showing Northwestern over Minnesota out here. I've met a lot of Minnesota folks here that are into football, but not many Northwestern fans. You'd think the Big Ten would have the demographics figured out by now.
Big Ten Streaming Update: When I checked last night the site was down, probably for maintenance. Today you can sign up for it, but it doesn't include any football or televised basketball games.