F/G club also has lockers with keys. Or, MSP has several banks of lockers airside that you can stuff your bags in. I think it's around $2/hour and uses a fingerprint instead of a key to secure your items. Pretty cool technology I think, and airside!!
I've been in the C club on Monday nights when they played MNF on one of the smaller TVs in the room close to the check-in desk, but if someone's already there watching something, you might have to ask nicely or go to a sports bar.