What's On Tonight: American Inventor, Last Comic Standing, Rescue Me

• At 8, ABC has a new The Next Best Thing, followed by a new American Inventor.
• NBC has a new Most Outrageous Moments at 8, then new episodes of Last Comic Standing and Dateline.
• FOX has a new So You Think You Can Dance at 8, then a new Don't Forget The Lyrics.
• Discovery has a new Really Big Things at 8.
• At 9, CNBC has Big Mac: Inside The McDonald's Empire.
• There are two new episodes of Tyler Perry's House of Payne on TBS at 9.
• On a new Challenge, cooks try to make the ultimate Simpsons cake. It's on Food Network at 9.
• At 10, PBS has a new American Masters.
• FX has a new Rescue Me at 10.
• Discovery has two new eps of Cash Cab starting at 10.
• Also at 10: HBO repeats Bill Maher's live special from last weekend.

Check your local TV listings for more.