What's On Tonight: Comic-Con, Flashpoint, Penn and Teller

• G4 has live Comic-Con coverage until 10pm.
• At 8, CBS has a new Greatest American Dog.
• FOX has a new Are You Smarter Than A Fifth Grader? at 8, then a new So You Think You Can Dance.
• NBC has a new, two hour Last Comic Standing at 8, followed by a new Fear Itself.
• Cartoon Network has a new Chowder at 8, then new episodes of The Marvelous Misadventures of Flapjack and Total Drama Island.
• At 8:30, HGTV has a new Myles of Style, then new episodes of Rate My Space, Extreme Living, and House Hunters.
• At 9, TBS has a new Bill Engvall Show, then a new My Boys.
• TLC has a new American Chopper at 9.
• At 10, ABC has a new Hopkins.
• CBS has a new Flashpoint at 10 (new night).
• There's a new Burn Notice on USA at 10.
• Food Network has a new Ace of Cakes at 10.
• Bravo has a new Kathy Griffin: My Life on the D-List at 10.
• Showtime has a new Penn & Teller's Bullshit at 10.
• Also at 10: History Channel has a new Modern Marvels, followed by a new episode of The Works.

Check your local TV listings for more.