30 Rock 3 21 -1 -1 534631 534631 7.5 0.0 1456 Liz and Tracy convince Jack to begin the search for his real father and Tracy discovers that he has an illegitimate son. Meanwhile, Jenna and Liz fight for the spotlight when Jenna gets recognition for one of Liz's ideas. 25 https://artworks.thetvdb.com/banners/series/79488/episodes/5ef0ff7c8d7a7.jpg 2009-05-07 2009-05-07 false NBC Ron Weiner Tina Fey Don Scardino Alan Alda Keith Olbermann Michael Benjamin Washington Steve Buscemi Stuart Margolin 2020-06-23 01:55:40 WEB_DL 30 Rock S03E21 Mamma Mia 720p WEB-DL DD5.1.mkv