Code of Vengeance to Meego

The character of David Dalton first appeared on Knight Rider, then spun-off onto Code of Vengeance.

Team Knight Rider was a spin-off of Knight Rider.

1. Dr. Jackson Roykirk invented both the earthquake machine that had to be defeated by Team Knight Rider and the Nomad robot that had to be defeated by the Star Trek crew.

Star Trek TNG is part of the Star Trek Universe

THe John Larroquette Show reference Yoyodyne which is the company that makes some of the starships mentione on Star Trek: TNG

John Larroquette Show's John Hemingway called into Fraiser's show

Cheers spun-off Frasier

St Elsewhere's Westphall, Craig and Auschlander visited Cheers' bar

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

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

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

On a network crossover night, The Drew Carey Show, Grace Under Fire's Grace Kelly, Coach's Luther and Ellen's Paige and Spence all show up. Finally on Ellen, Paige and Spence run into Grace Kelly and Drew Carey

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

The Hughleys crossed over with The Parkers.

The Parkers was a spinoff of Moesha

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 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.

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.

Family Matters' Urkel appeared in the first two episodes of Meego.