One Magnificent Morning (OMM) is an American programming block that is programmed by Litton Entertainment, and debuted on October 4, 2014 as a replacement for the animation block Vortexx. It airs on Saturday mornings on the owned-and-operated stations and affiliates of The CW; the block features live-action documentary and lifestyle series aimed at preteens and teenagers between the ages of 10 and 16, the same style of programming that Litton provides for competing blocks seen on ABC, CBS and NBC. All of the programs in the three-hour block are designed to meet federally mandated educational programming guidelines.
As of 2017, most of One Magnificent Morning consists of edited reruns of programming not originally intended for a children's audience, including shows originally aired by National Geographic Channel and PBS.
On June 5, 2014, The CW announced that it would discontinue its existing Saturday morning block Vortexx, which was produced by Saban Brands, in favor of One Magnificent Morning, a new, five-hour block produced by Litton Entertainment and distributed by CBS Television Distribution, that would feature live-action educational programming aimed towards teenagers and their parents. The move came as part of a growing shift by broadcast television networks towards non-fiction programming to fulfill the FCC-mandated requirement to air a quota of educational programming weekly; the previous year, Litton began producing CBS Dream Team, a similar E/I block for sister network CBS (corporate parent CBS Corporation is a part-owner of The CW), and the company has also produced Litton's Weekend Adventure for ABC's affiliates since September 2011.
Vortexx aired for the final time on September 27, 2014, it was the last Saturday morning block across the major U.S. commercial broadcast networks that primarily featured non-educational children's programming. Such content has gradually fallen out of favor because of the E/I rules, as well as shifts in viewing habits towards cable networks and online video on demand services for cartoons and other youth-oriented content. One Magnificent Morning debuted the following week on October 4, 2014, replacing Vortexx in its 7:00 a.m. to Noon timeslot. As a consequence of the block launching three weeks after the traditional start of the syndication television season, Litton provided a temporary barter package of Everyday Health and Culture Click (which both formerly aired on Litton's Weekend Adventure) to CW stations, allowing those who depended on the OMM block to fulfill E/I guidelines to have programming before it started. Some initially announced shows that were not produced for the block were: America's Flavors, Social Media Mania, Swag and Taste of Home.
On January 7, 2016, The CW and Litton announced a five-year renewal for the block, extending it through the 2020-21 broadcast season. On October 7, 2017, the block's running time was reduced to three hours and began airing from 8:00 a.m. to 11:00 a.m. The CW then gave the two hours of reclaimed time to the affiliates.
Although One Magnificent Morning provides five hours of educational programming each week, which exceeds the three-hour minimum requirement defined under the Federal Communications Commission (FCC)'s Children's Television Act, some of The CW's owned-and-operated stations and affiliates continue to provide E/I-compliant programs acquired from the syndication market, mainly due to existing program distribution contracts. The CW Plus, in particular, continues to supply two hours of E/I-compliant syndicated programs within its national schedule following the block on Saturday afternoons, which further alleviates the service's subscription-subchannel affiliates from the responsibility of purchasing the local rights to such programs (the service's carriage of seven hours of E/I-compliant programming, and the fact that most of its affiliates operate as subchannels, allow The CW Plus's broadcast outlets to carry an additional subchannel without E/I interruptions under the Children's Television Act's programming regulations, as the local CW Plus outlet would have enough E/I content to cover both).
The CW prefers the block to air from 7:00 a.m. to Noon in each time zone, though scheduling variances exist in certain markets in which the local CW station may air a portion or the entirety of the block on a same-day delay to a later time period, delay it to Sundays, or split the lineup between both weekend days. CW Plus stations in the Central, Mountain and Alaska time zones air the block one hour earlier or later, depending on the local time zone, as that service operates separate feeds based on the network's Eastern and Pacific time zone scheduling for primetime shows.