Moesha to Pair of Kings

Hakeem and Niecy from Moesha went to the prom with Cher and Sean from Clueless.

Sabrina from Sabrina the Teenage Witch visited Cher from Clueless in the episode "Mr. Wright."

Sabrina the Teenage Witch also crossed over with Boy Meets World on several other occasions.

Boy Meets World was continued decades later in Girl Meets World

Austin and Ally appear on an episode of Girl Meets World. Bringing the Disney Channel Live Action Universe into the Westphall Universe

Jessie and Austin & Ally crossed over

Good Luck Charlie crossed over with Jessie

At the end of the episode "Guess Who's a Cheater", Stan says "Good Luck, Charlie", just as Teddy Duncan does on that show

In the episode "Cat with a Blog", the band Metal Wolf from I'm In The Band is referenced.

Burger from I"m In The Band nearly runs someone over, yelling "Skateboard on the sidewalk, Zeke!", in reference to Zeke and Luther

Pair of Kings crossed over with Zeke and Luther during the heatwave episode