This mostly fake talk show hosted by "Mark Luge," which premiered in early 2005, mixes late-night staples--monologues, guests, interviews--with a sketch show's satirical characters. Steve Waltien, who played alternate host Danny Arthur the night I attended, conjures Craig Kilborn; Jeremy Sosenko as bandleader Mr. T resembles a young Ron Jeremy deadpanning like Paul Shaffer; and Seth Weitberg, the show's creator, draws the most laughs as sidekick Amit, an easily amused Indian immigrant who tries to be hip to American pop culture. Zany skits--updated weekly--and appearances by actual semicelebrities buoy the appeal. Ultimately, though, the hybrid format is jarring, as the show never satisfactorily imitates or parodies its sources in late-night TV. Open run: Sat midnight, I.O., 3541 N. Clark, 773-880-0199, $5.