"Un-Broke: What You Need to Know About Money" (8 p.m., WLS-Channel 7): Chicago financial whiz Mellody Hobson -- also notable for being George Lucas's Oscars date -- explains it all, from credit cards to stock market indexes. She has a little help from friends Will Smith, Samuel L. Jackson, Seth Green and the Jonas Brothers.

"What Not to Wear" (8 p.m., TLC): "Blossom's" Mayim Bialik is all grown up now with two kids, but her wardrobe didn't bloom along with her. Stacy and Clinton try to help.

"Nature's Most Amazing Events" (7 p.m., Discovery): The premiere is about the Arctic summer's Great Melt, a polar bear and her cub.

"The Tonight Show With Jay Leno" (10:35 p.m., WMAQ-Channel 5): Jay's last "Tonight" show. He welcomes successor Conan O'Brien as a guest -- awkward alert.