Big Brother 10 (7 p.m., Ch. 2): Still trapped in that house.

So You Think You Can Dance (7 p.m., Ch. 13): Two of the four Utahns are gone, but Chelsie Hightower and Gev Manoukian are still in the running.

Baby Borrowers (8 p.m., Ch. 5): This week the teens try to deal with preteens. Good luck.

Nova ScienceNow (8 p.m., Ch. 7): This week's topics include space weather and detecting structural damage of bridges.

Tyler Perry's House of Payne (8 and 8:30 p.m., TBS): The fourth season concludes with a pair of new episodes.

Project Runway (10 p.m., Bravo): The fifth season of this addictive reality/competition show begins, and one of the designers is a 26-year-old Salt Laker, Keith, a self-taughter designer with a background in marketing and advertising. According to Bravo, Keith didn't pursue his dream until asked if he was interested in working on a fashion show while producing artwork for clothing. He bought his own sewing machine two weeks before that show and has been designing ever since.