Nova: The Big Energy Gamble (8pm, UNC-TV) - This episode of Nova looks at the environmental pros and possible economic cons of California's green initiative, which seeks to return the state's carbon dioxide emissions to 1990 levels by 2020. Also, environmentalist Ed Begley, Jr. and Bill Nye ("The Science Guy") have a contest to see who can leave the smallest carbon footprint.
Glee (9pm, Fox) - It's the much-anticipated Madonna Episode. When the boys in glee club begin to bully the girls, Will turns them on to the music of Madonna -- to empower the girls and to teach the boys respect. They perform "Express Yourself" and "Like a Prayer." All of that will be great, I'm sure. But the best part of the episode promises to be the makeover which Kurt and Mercedes give to Sue Sylvester (Jane Lynch, left). And yes, they'll show Sue's "Vogue" video again.
Parenthood (10pm, NBC) - Amber's ex boyfriend comes to town, which causes trouble. Joel and Julia worry that their daughter Sydney also has Asperger's Syndrome, and Crosby wants to help pay for Jabbar's birthday party.
Justified (10pm, FX) - A well-to-do Kentucky horse breeder is found dead of an apparent suicide and his art collection is missing. Raylan searches for the art but must also deal with the dead man's wife, who won't stop hitting on him.