On July 21, 2001, Nickelodeon broadcast the made-for-TV special "All Growed Up" to celebrate the 10th anniversary of the series premiere. The special was a pilot for the "Rugrats" sequel series "All Grown Up!", which aired from 2003 to 2008 as it chronicles the lives of the babies and their parents after they age 10 years. A spin-off series, "Rugrats Pre-School Daze", aired on TV in 2008 but had only four episodes after Nickelodeon decided to focus on the sequel series. Two direct-to-video specials were released in 2005 and 2006 under the title "". Tie-in media for the series include video games, comics, toys, and various other merchandise.