30 ROCK “The Ones” Season 3 Episode 19 April 21, 2009 30 Rock 30 ROCK‘s Season 3 Episode 19 “The Ones” : Take a sneak peek of this new episode airing this Thursday April 23 at 8pm on NBC. Episode Synopsis: 30 ROCK “The Ones” Season 3 Episode 19 – Jack (Baldwin) decides his commitment to Elisa (guest star Hayek) is serious enough to go shopping for an engagement ring with Liz (Tina Fey). Tracy (Morgan), ironically, is the one Jack turns to for advice on how to deal with the pressures of married life. Meanwhile, Elisa divulges to Liz she is keeping a secret. When a prank results in an injury back at “TGS,†Jenna (Jane Krakowski) loses her cool over an attractive EMT. Also stars Jack McBrayer, Judah Friedlander and Keith Powell. Show Cast: Tina Fey, Tracy Morgan, Jane Krakowski, Alec Baldwin, Scott Adsit, Keith Powell, Judah Friedlander, Katrina Bowden, Jack McBrayer Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)