S3, E7: Jenna (Jane Krakowski) is concerned that Liz’s (Tina Fey) attraction to a new guy (guest star Peter Dinklage) has to do with her longing to have a child. Jack (Alec Baldwin) is keeping busy as he helps Tracy and wife Angie (guest star Sherri Shepherd) arrange a "post-nup," and tries to get Jenna an audition for the title role in a Janis Joplin biopic. Plus, he finds time to hit it off with his mother’s nurse, Elisa (guest star Salma Hayek). Also starring Jack McBrayer, Judah Friedlander and Scott Adsit.