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Children's programming

Children's programming has played a part in NBC's programming since its initial roots in television. NBC's first major children's series, Howdy Doody, debuted in 1947 and was one of the era's first breakthrough television shows. From the mid-1960s until 1992, the bulk of NBC's children's programming was composed of mainly animated programming including classic Looney Tunes and Woody Woodpecker shorts; reruns of prime time animated sitcoms such as The Flintstones and The Jetsons; foreign acquisitions like Astro Boy and Kimba the White Lion; animated adaptions of Punky Brewster, ALF and Star Trek as well as animated vehicles for Gary Coleman and Mr. T; live-action programs like The Banana Splits, The Bugaloos and H.R. Pufnstuf; and the original broadcasts of Gumby, The Rocky and Bullwinkle Show, Underdog, The Smurfs, Alvin and the Chipmunks and Disney's Adventures of the Gummi Bears. From 1984 to 1989, the network aired a series of public service announcements called One to Grow On, which aired after the end credits of every program or every other children's program.

In 1989, NBC premiered Saved by the Bell, a live-action teen sitcom which originated on The Disney Channel the previous year as Good Morning, Miss Bliss (which served as a starring vehicle for Hayley Mills; four cast members from that show were cast in the NBC series as the characters they originally played on Miss Bliss). Saved by the Bell, despite being given bad reviews from television critics, would become one of the most popular teen series in television history as well as the top-rated series on Saturday mornings, dethroning ABC's The Bugs Bunny and Tweety Show in its first season.

The success of Saved by the Bell led NBC to remove animated series from its Saturday morning lineup in August 1992 in favor of additional live-action series as part of a new block called TNBC, along with the debut of a Saturday edition of Today. Most of the series featured on the TNBC lineup were executive produced by Peter Engel (such as City Guys, Hang Time, California Dreams, One World and the Saved by the Bell sequel, Saved by the Bell: The New Class), with the lineup being designed from the start to meet the earliest form of the FCC's educational programming guidelines under the Children's Television Act. NBA Inside Stuff, an analysis and interview program aimed at teens that was hosted for most of its run by Ahmad Rashad, was also a part of the TNBC lineup during the NBA season until 2002 (when the program moved to ABC as a result of that network taking the NBA rights from NBC).

In 2002, NBC entered into an agreement with Discovery Communications to carry educational children's programs from the Discovery Kids cable channel. Debuting that September, the Discovery Kids on NBC block originally consisted exclusively of live-action series, including reality series Trading Spaces: Boys vs. Girls (a kid-themed version of the TLC series Trading Spaces); the Emmy-nominated reality game show Endurance, hosted and produced by J. D. Roth (whose production company, 3-Ball Productions, would also produce reality series The Biggest Loser for NBC beginning in 2003); and scripted series such as Strange Days at Blake Holsey High and Scout's Safari. The block later expanded to include some animated series such as Kenny the Shark, Tutenstein and Time Warp Trio.

In May 2006, NBC announced plans to launch a new Saturday morning children's block under the Qubo brand in September 2006. An endeavor originally operated as a joint venture between NBCUniversal, Ion Media Networks, Scholastic Press, Classic Media and Corus Entertainment 's Nelvana unit (Ion acquired the other partners' shares in 2013), the Qubo venture also encompassed weekly blocks on Telemundo and Ion Television, a 24-hour digital multicast network on Ion's owned-and-operated and affiliated stations, as well as video on demand services and a branded website. Qubo launched on NBC on September 9, 2006, with six programs (VeggieTales, Dragon, VeggieTales Presents: 3-2-1 Penguins!, Babar, Jane and the Dragon and Jacob Two-Two).

On March 28, 2012, it was announced that NBC would launch a new Saturday morning preschool block programmed by Sprout (originally jointly owned by NBCUniversal, PBS, Sesame Workshop and Apax Partners, with the former acquiring the other's interests later that year). The block, NBC Kids, premiered on July 7, 2012, replacing the "Qubo on NBC" block.

On February 24, 2016, it was announced that NBC would launch a new Saturday morning block programmed by Litton Entertainment under the Children's Television Act. It's called The More You Know, inspired by the name of brand extension of The More You Know —a series of public service campaigns first launched by NBC in 1989. The block premiered on October 8, 2016, replacing NBC Kids block (originally October 1, 2016, but postponed due to the NBC network coverage of the 2016 Ryder Cup).