What's On Tonight: Moonlight, Las Vegas, Doctor Who, Bill Maher

• At 8, CBS has the season premiere of Ghost Whisperer, then the series premiere of Moonlight and the season premiere of Numb3rs.
• NBC has a new Deal Or No Deal at 8, followed by the season premiere of Las Vegas.
• ABC has two new episodes of Just For Laughs at 8.
• FOX has a new Are You Smarter Than A Fifth Grader at 8.
• There's a new Smackdown! on The CW at 8.
• PBS has a new NOW at 8, then new episodes of Bill Moyers Journal and Expose: America.
• Also at 8: Sci-Fi has new episodes of Doctor Who, Flash Gordon, and Stargate: Atlantis.
• At 8:30, Nick has a new Avatar: Airbender.
• TLC has a new What Not To Wear at 9.
• At 10, ABC has a new 20/20.
• E! has a new episode of The Soup at 10.
• At 11, HBO has a new Real Time with Bill Maher, with guests Ken Burns, Pete Hamill, Rep. Rahm Emanuel, and Michael Eric Dyson.

Check your local TV listings for more.