Aaron Stone to Medium

The Hero Rising video game from Aaron Stone appears in the Good Luck Charlie episode "Let's Potty".

Good Luck Charlie crossed over with Austin & Ally

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

Continuation of Boy Meets Wolrd

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

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

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

The Parkers was a spinoff of Moesha

The Hughleys crossed over with The Parkers.

The Drew Carey Show's Mimi appeared in an episode of The Hughleys

The Drew Carey Show did a cross over with Coach.

Newhart's Larry, Darryl and Darryl squatted in Coach's Hayden and Christine's home

The Bob Newhart Show's Bob Hartley woke up after dreaming the entire series Newhart during Newhart's finale.

The Bob Newhart Show's Elliot Carlin visited the psych ward at St Elsewhere's St Eligius Hospital.

An episode of Crossing Jordan featured a priest from St. Eligius Church in Boston. St. Elsewhere was set at St Eligius Hospital in Boston

Las Vegas' Danny McCoy and Sam Marquez took a plane to Boston. While in flight a guy on the plane died causing a crossover with Crossing Jordan.

Characters from Medium visited the Monticito Casino from Las Vegas