In Tina Fey's original pilot script for 30 Rock, Jenna was named "Jenna DeCarlo", and The Girlie Show was titled Friday Night Bits with Jenna DeCarlo [REF].
Despite being credited as a regular,[REF] the character does not appear in every episode, having been absent from five of the twenty-one episodes of the first season, three of the fifteen episodes of the second season, and two of the twenty-two episodes of the third season.