At the end of S1E1, Lorelai and Rory are sitting in the diner and Lorelai says, “So tell me about the guy. Is he dreamy?” To which Rory replies, “Ugh, that’s so Nick at Nite.”
Nick at Nite, as its name implies, is a television channel that broadcasts on Nickelodeon’s channel overnight. Nick at Nite usually broadcasts old sitcom reruns, originally using shows from as early as the 1950’s. In the 1990’s Nick and Nite played shows such as “I Love Lucy,” “Bewitched,” “I Dream of Jeannie,” “The Wonder Years” and “The Donna Reed Show.” Many Nick at Nite shows are referenced by both Lorelai and Rory throughout the series, indicating that they may have watched the channel frequently.