The Human Spark (8pm, UNC-TV) - Alan Alda (right) hosts a three-part series that explores what makes us humans different from other species. Alda makes a trip to the North Carolina Zoo and interviews Duke Anthropologist Brian Hare. Immediately following tonight's episode, check out the UNC-TV original production, "North Carolina Scientists Explore the Human Spark." Read more about both shows here. 

I Get That A Lot (8pm, CBS) - Celebrities work at everyday jobs just to freak out us regular people. For instance, Paris Hilton works at a gas station, Snoop Dogg is a parking lot attendant, and Julie Chen does time in a yogurt shop.  

Modern Family (9pm, ABC) - Ah, yes. This is must-see TV: Benjamin Bratt (left) guest stars as Gloria's ex-husband and Manny's infamously unreliable dad. We'll finally see where little Manny gets his swagger. Also, Phil suffers from kidney stones and Mitchell and Cameron try to sleep-train Lily. 

Cougar Town (9:30pm, ABC) - It's a sort of "Friends" reunion with Lisa Kudrow guest starring tonight a dermatologist visited by Ellie and Jules (Courteney Cox). Also, Travis begins working for Barbara.

Nip/Tuck (10pm, FX) - The show's seventh (and final) season begins, and the doctors are honored by their alma mater, The University of Miami. They also treat a man whose genetic disorder has led to self-mutilation. 

"The Human Spark," a new three-part PBS series hosted by Alan Alda and featuring a Duke University anthropologist, debuts tonight at 8pm on UNC-TV.

Throughout the three-part series, Alda travels the world exploring the question of exactly what differentiates us humans from other species. Alda talked to many experts in the scientific community, including Duke University Assistant Professor of Evolutionary Anthropology, Brian Hare.

Alda filmed parts of the special at the North Carolina Zoo in Asheboro, where he interviewed Hare and spent time with chimps, including the Zoo's aggressive alpha chimp, Hondo.