They added a ton of Cartoon Network and Adult Swim shows, but the one you should be most excited for is Chowder.
Seriously, watch Chowder right now and weep that it got replaced by Adventure Time and Regular Show.
12/07 - Exodus
12/08 - Blackalicious
12/11 - Saves The Day
12/16 - Pallbearer
12/18 - Orange Goblin OR Wolvhammer