The series' creator and showrunner, Tracy Gamble, left the series for a time over creative differences prior to the third season, but he later returned as a consulting producer midway through the third season. Even before the third-season finale's airing, rumors began circulating that 8 Simple Rules was facing cancellation due to Ritter's death and poor ratings.Gamble was replaced by Judd Pillot and John Peaslee, who had performed the same role in the final season of Spade's sitcom, Just Shoot Me! The Friday night "death slot" ratings took their toll on 8 Simple Rules.On October 3, 2009, 8 Simple Rules returned to ABC Family, having been absent for a year, airing on Saturdays from am to am, and Sundays at a.m.- pm Airings have been sporadic due to the channel's unpredictable movie schedule and holiday programming block.
The series ran on ABC from September 17, 2002 to April 15, 2005.
The first season focused on Paul being left in charge of the kids after Cate takes a full-time job as a nurse, with comedic emphasis on his often strict rules concerning his daughters and dating.
James Garner and David Spade later joined the main cast as Cate's father and nephew, Jim Egan and C. Barnes, in an attempt to fill the void left by Ritter.
After three seasons, ABC cancelled 8 Simple Rules in May 2005 due to low ratings.
The series was shown on Irish channel RTÉ Two, then later, rights to the show were acquired by TG4, which aired the series weeknights at 5.35 pm.