Daytime talk show hits have included "Live with Kelly and Ryan" (and its previous iterations with Regis Philbin as co-host), "The Jenny Jones Show", "The Oprah Winfrey Show", "Rachael Ray", "Dr. Phil", "Ricki Lake (TV series)", "The Ellen DeGeneres Show", and "Harry" which run the gamut from serious to lighthearted in topicality and format; a subset of so-called "trash TV" talk shows such as "The Jerry Springer Show", which hit their peak during the 1990s, also veered into exploitation and titillation. Most daytime talk programs air in syndication, with various attempts airing on network television to mixed results (among the more notable network efforts are the female-driven panel talk shows "The View", "The Talk", The Real and "Get It Girl" on LATV. Children's television programs are also quite popular. Early ventures into children's television in the 1950s aired on weekdays with shows such as "Howdy Doody", "Captain Kangaroo", "Mr. Wizard", and the "Mickey Mouse Club". However children's programing had experienced its greatest success on Saturday mornings from the late 1960s to the early 1990s. Programs shown during these time periods mainly consisted of animated programming including classic cartoons (such as "Looney Tunes", "Tom and Jerry" and "Woody Woodpecker"), reruns of prime time animated sitcoms (such as "The Flintstones" and "The Jetsons"), foreign acquisitions (such as "Astro Boy" and "Kimba the White Lion"), animated adaptations of films and television series (such as "Back to the Future", "Ghostbusters", "Batman", "ALF" and "Star Trek"), and original programs (such as "The Rocky and Bullwinkle Show", "Scooby-Doo", "Fat Albert and the Cosby Kids", "The Smurfs", "Alvin and the Chipmunks", "Garfield and Friends" and "Teenage Mutant Ninja Turtles"). Some locally produced children's programs – which often mixed cartoons, special guests and audience-participation games – also became popular in the local markets where they were broadcast; one of the most popular was the Bozo the Clown franchise, which became most well known for its Chicago version, which began airing nationally when WGN-TV became a superstation in October 1978. However, in 1990, due to concerns regarding commercial advertising and cross-promotion in children's programs by parental advocacy groups, the Federal Communications Commission passed the Children's Television Act, legislation that among other provisions requires all broadcast television networks and stations to air at least three hours of educational children's programming each week.