Well, we got screwed by last year's Maryland time. Looks like it's the Terps's turn.
Cal-Maryland will open the season Sept. 5 at 10 PM EST, 7 PM PST on ESPN2. So the game will be finishing up around the time most Maryland football players would probably be partying it up in College Park. Fair's fair.
Cal and Oregon, already confirmed for a slot on ESPN/ABC earlier this year, will air Sept. 26th at 3:30 PM EST, 12:30 PM PST, just like in 2007. And again, USC-Cal will be on Saturday Night Football on ABC, 8 PM EST, 5 PM PST, October 3rd.
Full Pac-10 ESPN/ABC schedule's in the comments, but also remember there are about eight weeks unslotted where ABC gets to pick their afternoon Pac-10 regional game, and it's likely Cal will get picked up for two or three of those. FSN and Versus will announce their schedules in June.
(Hat-tip to Berkelium97!)