30 Rock remains as excellent as ever with this highly amusing episode, which was used to secure Alec Baldwin's Emmy nomination in 2007 (he lost out to Ricky Gervais, but that's another story). Boy, did he deserve it.
Jack keeps mentoring Liz, but problems ensue when Liz has a conversation about marriage and family with the newly engaged Cerie and realizes she wants a baby more than anything. Unfortunately, Jack can't do anything to comfort her, since the subject has brought back painful memories of his own childhood, reinforced by his mother's constant phone calls from the nursing home. Another source of distress is Josh (Lonny Ross), whose Tracy impression is starting to bug the eccentric comedian. It doesn't get any better when he starts impersonating Jack to get away with it.
There are so many great things in The Baby Show, it's hard to make a comprehensive list. Most poignant is the baby storyline, a funny counterpoint to Tina Fey's real-life motherhood (she gave birth to a girl a whole year before the show went on the air), which also allows Chris Parnell to return as the incompetent Dr. Spaceman (man, I just love that name). Rachel Dratch reprises one of her guest roles as well, namely the instantly adorable Greta, the Cat Lady. But in the end this is Baldwin's show, and his Emmy nomination was a certainty from the moment he describes his worst infancy trauma: "My mother wanted to send me to Vietnam to make a man out of me. I was twelve.".