American Dad! Season 6 Episode 2 (American Dad! s06e02) with title “Son of Stan” aired on Sunday, October 10th 2010 at 09:30 pm via FOX Network.
Here is summary for American Dad! Season 6 Episode 2 :

After Stan creates a clone of Steve, Francine and Stan compete with each other to determine who has better parenting skills. Meanwhile, Roger tracks down the AWOL bride and groom in Thailand