30 Rock Season 3 Episode 1 Do-Over ( Air Date 2008-10-30 ) Genre Comedy category. Overview "Worried that Liz's hectic lifestyle may be too much to adopt a child, Bev, the adoption agent, visits the set. Panicked, Liz tells everyone to act normal, but chaos soon ensues as a fight arises between Jenna and Tracy. Meanwhile, Jack returns to 30 Rock and vows to do whatever it takes to get his position back from Devin.".