8 Simple Rules

Cast and Crew

Katey Sagal and John Ritter were close friends in real life and had wanted to work together for a long time.
Amy Davidson played middle child to Kaley Cuoco, but in real life Amy is six years older than Kaley.
James Garner had the last words of the series.
Both Amy Davidson and Martin Spanjers co-starred with Mary-Kate and Ashley Olsen in two different series prior to 8 Simple Rules. Billy Aaron Brown also starred with the twins in their movie Holiday in the Sun.
After Just Shoot Me ceased production, David Spade later joined the cast.

Composition

Production

* In scenes shot from the landing (where Bridget and Kerry have stormed to their room and either Paul or Kate are trying to reason with them), Bridget and Kerry appear to have separate rooms, but it is shown in scenes shot in the bedroom that they share a room. In fact, the second door is connected to their room via a semi-ensuite bathroom, making it appear they have two doors.

Reference

One episode features a dream sequence in which Paul is in the set of Three's Company. John Ritter gained fame from Three's Company. Also, Paul's wit and deadpan expression are similar to Jack Tripper. His co-star on that series Don Knotts even appeared in a cameo at the end of the episode. Knotts would be the last Three's Company co-star to work with Ritter before his death.
The name of the show was parodied in the pornographic film 8 simple Rules for Banging My Teenage Daughter.