Filming of The Rural Juror
"The Rural Juror" is a fictional film within 30 Rock, starring Jenna Maroney. It is a film adaption of a book by Kevin Grisham (who has just finished writing its sequel, "Urban Fervor"), brother to legal novelist John Grisham and former recycling plant worker[1]. No one in the TGS crew knew the film's exact name until Jenna gave them a video clip.
In Season 3, Episode 6 "Christmas Special," Jack's mother Colleen is seen reading "Urban Fervor" while ringing her bell at Jack's house.
In Season 5, Episode 2 "When It Rains, It Pours", Grizz is reading "Urban Fervor" while guarding Tracy (who's werewolfing himself).