Gilligan's Island to Hangin' with Mr Cooper
4 connections
Gilligan's Island
Meego
Meego (who was an alien) tried to contact his mother on the home planet by phone and instead the phone connected with Gilligan, Mary Ann and the Professor on Gillian's Island
Family Matters
Family Matters' Urkel appeared in the first two episodes of Meego.
Full House
Steve Urkel visited Stephanie Tanner of Full House to convince her that glasses could be cool
Hangin' with Mr Cooper
Michelle Tanner from Full House appeared on an episode of Hangin' With Mr. Cooper in which Mr. Cooper was her substitute teacher.