8 Simple Rules for Dating My Teenage Daughter (also known as 8 Simple Rules for the third and final season) is an American sitcom, originally starring John Ritter and Katey Sagal.
James Garner and David Spade joined the cast afterward.
ABC cancelled the series on May 17, 2005 after three seasons because of low ratings.
The show's premise and title were derived from the book 8 Simple Rules for Dating My Teenage Daughter: And other tips from a beleaguered father (not that any of them work) by W. The third season (after Ritter's death) took a creative turn, revolving more around cousin C. (David Spade) and grandfather Jim (James Garner), than the immediate Hennessy family, more specifically not revolving around the raising of the Hennessy girls.
After the novelty of newly added ensemble characters wore off, the series returned to its original format.
The first three episodes of the show's second season had been completed when Ritter reportedly suffered an un-diagnosed aortic dissection.
After Ritter had experienced discomfort during his rehearsal of the show in the afternoon of September 11, 2003, crew members took him to a nearby hospital where he suddenly died that night following a misdiagnosis of a heart attack.
Following Ritter's death, ABC announced that the show would continue after a hiatus, and would incorporate the death of Ritter's character.
The three new episodes that Ritter completed were aired with Sagal introducing them.
The show returned two months after Ritter's death, with a one-hour episode, "Goodbye", which was turned into a tribute to Ritter's character.