As a result of the continued success of Saved by the Bell, NBC restructured its Saturday morning lineup on September 12, 1992, removing the animated series (ending the entirety of conventional children's programming – animated or otherwise – airing on NBC itself for the next ten years) in favor of additional live-action – mostly scripted – series aimed at teenagers as part of a new three-hour block under the brand TNBC (the network also launched an hour-long Saturday edition of Today that debuted simultaneously with the TNBC lineup).
On January 6, 2002, NBC entered into an agreement with Discovery Communications, in which it would produce a new Saturday morning block for the network featuring original programs from the Discovery Kids cable channel under a time-lease agreement to provide programming compliant with the FCC's educational programming guidelines to NBC's affiliates, rather than having any network input or production. The new block, branded "Discovery Kids on NBC", premiered on September 14, 2002.
Qubo on NBC
September 9, 2006
In May 2006, NBCUniversal and Ion Media Networks announced plans to form Qubo, a joint venture in conjunction with Corus Entertainment, Scholastic Corporation, Classic Media, and its subsidiary Big Idea Entertainment. The multi-platform programming endeavor, aimed at children between 4 and 8 years of age, would comprise children's program blocks airing on NBC, Spanish-language sister network Telemundo and Ion Media's i: Independent Television (now Ion Television), as well as a 24-hour digital multicast channel on Ion Media's owned-and-operated stations (alternatively known as Qubo Channel), video-on-demand services, and a branded website. This block was launched on September 9, 2006. This block ceased broadcasting on June 30, 2012 for NBC, and July 1 of that year for Telemundo, being replaced by NBC Kids and MiTelemundo the following Saturday, leaving Ion Television as the only network to retain a Qubo-branded children's block up until the closure of Qubo Channel on February 28, 2021, as the E.W. Scripps Company is now the owner of Ion Media, which they acquired on January 7, 2021.
On March 28, 2012, Following Comcast's purchase of NBCUniversal. NBC and Telemundo announced that Qubo on NBC and Telemundo would be discontinued and be replaced with NBC Kids and MiTelemundo on July 7, 2012. The block was programmed by Sprout. The block ceased broadcasting on September 25, 2016, being replaced by The More You Know the following Saturday.
The More You Know
On February 24, 2016, NBC announced that NBC Kids would be discontinued and replaced by a new Saturday morning E/I block based on the network's The More You Know campaign reaimed at teenagers and produced by Litton Entertainment. The block first aired on October 8, 2016.