Clueless to Full House
5 connections
Clueless
Sabrina the Teenage Witch
Sabrina from Sabrina the Teenage Witch visited Cher from Clueless in the episode "Mr. Wright."
Boy Meets World
Sabrina the Teenage Witch also crossed over with Boy Meets World on several other occasions.
Step by Step
Boy Meets World and Step by Step both had episodes at Disney World and whiel in Disney World Eric from Boy Meets World met Dana from Step by Step.
Family Matters
The family from Step by Step was in the middle of a barbeque outside when Urkel from Family Matters came (literally) crashing in on the jetpack he had built on the last episode of Family Matters.
Full House
Steve Urkel visited Stephanie Tanner of Full House to convince her that glasses could be cool