NBC

===Children's programming===
{{Main|Children's programming on NBC|TNBC|Discovery Kids on NBC|Qubo|NBC Kids|The More You Know (TV programming block)}}

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 (TV series)|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 (TV series)|Underdog]]'', ''[[The Smurfs (1981 TV series)|The Smurfs]]'', ''[[Alvin and the Chipmunks (1983 TV series)|Alvin and the Chipmunks]]'' and ''[[Disney's Adventures of the Gummi Bears]]''. From 1984 to 1989, the network aired a series of [[public service announcement]]s called ''[[One to Grow On]]'', which aired after the end credits of every program or every other children's program.<ref>{{cite web|title=The 1986 Saturday Morning Lineup on NBC|url=http://www.retroist.com/2009/03/20/the-1986-saturday-morning-lineup-on-nbc/|work=The Retroist|date=March 20, 2009|access-date=January 28, 2014|archive-url=https://web.archive.org/web/20140128015744/http://www.retroist.com/2009/03/20/the-1986-saturday-morning-lineup-on-nbc/|archive-date=January 28, 2014|url-status=dead}}</ref>

In 1989, NBC premiered ''[[Saved by the Bell]]'', a live-action [[teen sitcom]] which originated on [[Disney Channel|The Disney Channel]] the previous year as ''[[Good Morning, Miss Bliss]]'' (which served as a starring vehicle for [[Hayley Mills]]; [[Mark-Paul Gosselaar|four]] [[Dennis Haskins|cast members]] [[Lark Voorhies|from]] [[Dustin Diamond|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 Show|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 ''[[Weekend Today|Today]]''. Most of the series featured on the TNBC lineup were executive produced by [[Peter Engel (TV producer)|Peter Engel]] (such as ''[[City Guys]]'', ''[[Hang Time (TV series)|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 [[E/I|educational programming guidelines]] under the [[Children's Television Act]].<ref name="DiscoveryKids">{{cite news|title=Discovery set to kid around with Peacock|url=https://www.variety.com/article/VR1117856766.html?categoryid=1201&cs=1&query=|archive-url=https://archive.today/20121208161304/http://www.variety.com/article/VR1117856766.html?categoryid=1201&cs=1&query=|url-status=dead|archive-date=December 8, 2012|first=Paula|last=Bernstein|work=Variety|date=December 4, 2001|access-date=August 13, 2009}}</ref> ''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, Inc.|Discovery Communications]] to carry educational children's programs from the [[Discovery Kids]] cable channel.<ref name="DiscoveryKids"/> 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 (TV network)|TLC]] series ''[[Trading Spaces]]''); the Emmy-nominated reality game show ''[[Endurance (TV series)|Endurance]]'', hosted and produced by [[J. D. Roth]] (whose production company, 3-Ball Productions, would also produce reality series ''[[The Biggest Loser (American TV 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.<ref>{{cite news|title=Discovery, NBC to End Sat. Kids Block|url=http://www.mediaweek.com/mw/news/recent_display.jsp?vnu_content_id=1002198189|first=Anthony|last=Crupi|work=Mediaweek|date=March 16, 2006 |access-date=March 25, 2008 |archive-url=https://web.archive.org/web/20080207021249/http://www.mediaweek.com/mw/news/recent_display.jsp?vnu_content_id=1002198189 |archive-date=February 7, 2008 |url-status=dead}}</ref> 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 (TV series)|Dragon]]'', ''VeggieTales Presents: [[3-2-1 Penguins!]]'', ''[[Babar (TV series)|Babar]]'', ''[[Jane and the Dragon (TV series)|Jane and the Dragon]]'' and ''[[Jacob Two-Two (TV series)|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.<ref>{{cite press release|title=NBC Will Launch NBC Kids, a New Saturday Morning Preschool Block Programmed by Sprout®, Saturday, July 7|url=http://www.marketwatch.com/story/nbc-will-launch-nbc-kids-a-new-saturday-morning-preschool-block-programmed-by-sprout-saturday-july-7-2012-03-28 |archive-url=https://archive.today/20120628234221/http://www.marketwatch.com/story/nbc-will-launch-nbc-kids-a-new-saturday-morning-preschool-block-programmed-by-sprout-saturday-july-7-2012-03-28 |url-status=dead |archive-date=June 28, 2012|newspaper=[[MarketWatch]]|date=March 28, 2012 |access-date=March 29, 2012}}</ref><ref>{{cite news|title=NBC to launch Saturday kids block|url=https://www.variety.com/article/VR1118052022?refCatId=14|first=Jon|last=Weisman|newspaper=Variety|date=March 28, 2012|access-date=March 29, 2012|archive-url=https://web.archive.org/web/20120519174046/http://www.variety.com/article/VR1118052022?refCatId=14|archive-date=May 19, 2012|url-status=dead}}</ref><ref>{{cite news|title=NBC, With Assist From Sprout, to Launch Saturday Morning Preschool Block|url=http://www.multichannel.com/article/482478-NBC_With_Assist_From_Sprout_to_Launch_Saturday_Morning_Preschool_Block.php|first=Lindsay|last=Rubino|newspaper=Multichannel News|date=March 28, 2012 |access-date=March 29, 2012 |url-status=dead |archive-url=https://web.archive.org/web/20120508064838/http://www.multichannel.com/article/482478-NBC_With_Assist_From_Sprout_to_Launch_Saturday_Morning_Preschool_Block.php |archive-date=May 8, 2012}}</ref><ref>{{cite news|title=NBC Launches Preschool Saturday Block Programmed By Sprout|url=https://www.deadline.com/2012/03/nbc-launches-preschool-saturday-block-programmed-by-sprout/|first=Nellie|last=Andreeva|website=Deadline Hollywood|date=March 28, 2012|access-date=March 29, 2012|archive-date=August 10, 2013|archive-url=https://web.archive.org/web/20130810232758/http://www.deadline.com/2012/03/nbc-launches-preschool-saturday-block-programmed-by-sprout/|url-status=live}}</ref>

On February 24, 2016, it was announced that NBC would launch a new Saturday morning block programmed by [[Hearst Media Production Group|Litton Entertainment]] under the Children's Television Act. It's called, [[The More You Know (TV programming block)|The More You Know]], inspired by the name of [[brand extension]] of ''[[The More You Know]]''—a series of [[Public service announcement|public service]] campaigns first launched by NBC in 1989.<ref>{{cite web |last=Garber |first=Megan |date=September 16, 2014 |title='The More You Know: There's More to Know |url=https://www.theatlantic.com/entertainment/archive/2014/09/theres-more-to-know-about-the-more-you-know/380242/ |access-date=February 25, 2016 |work=The Atlantic}}</ref><ref name="band-more you know">{{cite web |last=Malone |first=Michael |date=February 24, 2016 |title=NBC, Litton Partner on 'The More You Know' Block |url=http://www.broadcastingcable.com/news/programming/nbc-litton-partner-more-you-know-block/154074 |access-date=February 25, 2016 |work=Broadcasting & Cable}}</ref> The block premiered on October 8, 2016, replacing NBC Kids block (originally October 1, 2016, but postponed due to the [[Golf on NBC|NBC network coverage]] of the [[2016 Ryder Cup]]).