"Clay Aiken: Tried & True - Live" (7 p.m., WTTW-Channel 11): Clay-mates will be delighted with his renditions of "Moon River" and "Mack the Knife." Special guest: Ruben Studdard.
"Beautiful People" (9 p.m., Logo): "The Wonder Years" meets "Absolutely Fabulous" on this British series, which begins its second season with Simon dealing with the fact that his parents weren't married.
"Robert Klein: Unfair and Unbalanced" (9 p.m., HBO): The caustic comedian performs in Fort Lauderdale. Highlights: a bit on love scenes on film, and a musical number about Barack Obama.
"Chris Botti in Boston" (7 p.m., WTTW-Channel 11): The hot jazz trumpeter performs with the Boston Pops Orchestra, joined by Josh Groban, Yo-Yo Ma, Sting and Steven Tyler, and appears in studio for a pledge drive.
"Unnatural History" (7 p.m., Cartoon Network): In this new series, which is ironically not a cartoon, an accomplished teen is sent to high school in Washington, D.C., to solve a mystery.
"Extreme Poodles" (8 p.m., TLC): Who knew pet grooming could be so exciting?
"Wonders of the World" (8 p.m., Discovery): Celebrities and fans reminisce about 25 years of programming highlights, and get a glimpse of future offerings.
"VH1 Storytellers: Christina Aguilera" (9 p.m., VH1): The reinvented "Bionic" woman performs new songs and answers fans' questions.
"Kourtney and Khloe Take Miami" (9 p.m., E!): The young ladies bicker about business in the season premiere. Disclaimer: I am not actually recommending this, but the Kardashians are difficult to ignore.
"Design Star" (9 p.m., HGTV): The fifth season returns to New York City with 12 new contestants, a white-box bedroom, and $500 to spend at an Asian market.