What's On TV Tonight-April 20, 2006

• ABC has two fresh hours of American Inventor and a new Commander in Chief.
• CBS has a new episode of Survivor, a repeat of CSI, and a fresh Without a Trace.
• NBC has the fourth night of Celebrity Cooking Showdown followed by repeats of My Name Is Earl, The Office, and ER.
• FOX shows two repeats of That '70s Show and a fresh The O.C.
• The WB has new episodes of Smallville and Supernatural.
• UPN is new all night with Everybody Hates Chris; Love, Inc., Eve, and Cuts.
• A&E has a new episode of Dallas S.W.A.T.
• SpikeTV shows new episodes of The Ultimate Fighter and TNA: Impact!.
• Comedy Central has a fresh episode of The Showbiz Show With David Spade.

What are you watching tonight? Discuss in the comments section.