This, from the helpful folks at SB Nation's national site:
Eight of the SEC tournament's 13 games will be streamed online at ESPN3, excluding only Friday's first two quarterfinal games (which are being broadcast exclusively on ESPNU), and the semifinals and final (all of which are being broadcast on ABC). All other games will air on TV on the SEC Network and streaming on ESPN3.
You can find the schedule for the tournament and the bracket in a nice if not so pretty picture at the SEC's official site. The game we Vols fans are most interested in today is the South Carolina-Mississippi State game, which tips at 7:30 p.m. We play the winner of that one tomorrow at 3:30.