Today's Guest: Grizz Chapman, actor, "30 Rock"   There may be at least three weddings figuring into tonight’s season finale of “30 Rock” on NBC, which airs at 9:30 p.m.: • Tracy and Dotcom are arguing over which one of them will be best man for Grizz. • Bride-to-be Cirie wants Liz Lemon to wear... Continue Reading →