how was it received by the viewers?
According to the Nielsen ratings system, "The Baby Show" was watched by 5.9 million households
The Baby Show
According to the Nielsen ratings system, "The Baby Show" was watched by 5.9 million households, the same as the previous week's episode "The Break-Up", in its original American broadcast. It received a 3.0 rating/7 share among viewers in the 18–49 demographic. 
what was the baby show? The ninth episode of the first season of the series "30 Rock". could you name any character from this episode? Cerie Xerox and Jenna Maroney. by whom was this produced? Jack Burditt
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The Baby Show [SEP] Reception
It even opened with a Jenna surprise-birthday segment that was funny for what it was, but had absolutely nothing to do with the rest of the show." Canning gave the episode a 7.0 out 10 rating. "TV Guide"'s Matt Mitovich liked that Josh had a story in this episode, and said that his impression of Tracy was "pretty good". He remarked that "The Baby Show" was "a solid episode, if a bit too theme-y for my broad-sitcom liking."