Scheduling
The show is produced and airs in three half-hour segments from 1:30 a.m. ET to 3 a.m. ET Monday through Friday mornings. America This Morning airs live to the network at 4 a.m. ET (which is anchored and produced by the same team) and is tape delayed for many ABC stations. Most ABC stations preempt portions of WNN due to local programming (usually infomercials or syndicated fare) with affiliates looping the show until America This Morning airs. Although most ABC stations clear the program, a small number of affiliates do not air World News Now:
- Hearst Television's KOCO-TV in Oklahoma City does clear the program but only carries the Tuesday-Friday editions, while the Monday edition of WNN is preempted due to syndicated programming and infomercials. The preemption of the Monday editions of World News Now began in November 2010, following the expansion of KOCO-TV's weekday morning newscast to 4:30 a.m., which pushed the timeslot of America This Morning ahead by a half-hour; prior to November 2010, the station aired a 25-minute block of the Monday edition joined in progress in-between an infomercial and America This Morning.
- Another Hearst-owned ABC affiliate, WCVB-TV in Boston, airs WNN; since the fall of 2010 for unknown reasons, however, Canadian subscribers of the Bell TV satellite and Bell Fibe TV fiber optic television services are unable to view WNN over WCVB, which the providers preempt with infomercials instead.
- Three ABC stations owned by Citadel Communications do not air World News Now, as KCAU-TV in Sioux City, Iowa, KLKN in Lincoln, Nebraska and WOI-TV in Ames, Iowa (Des Moines) all sign off the air during the overnight hours, the stations are among the few television stations remaining in the United States not operating on a 24-hour schedule. WLNE-TV in New Bedford, Massachusetts (Providence, Rhode Island), which was acquired by Citadel in April 2011, is the only Citadel-owned ABC affiliate that carries both a 24-hour schedule and clears World News Now.
- In addition, WDAY-TV in Fargo, North Dakota and its satellite WDAZ-TV in Grand Forks, North Dakota, KQTV in St. Joseph, Missouri, WOAY-TV in Oak Hill, West Virginia and WSVI-TV in the U.S. Virgin Islands also do not clear World News Now for broadcast as they sign-off overnight.
- WAWV in Terre Haute, Indiana, owned by Mission Broadcasting, did not clear World News Now when the station rejoined ABC in September 2011, following a 16-year absence of an over-the-air ABC affiliate in the market (it was an ABC affiliate at the time World News Now debuted, but was a Fox affiliate from 1995 to 2011); WAWV instead carries syndicated programming in place of WNN, as it does with the network's Saturday morning children's program block Litton's Weekend Adventure.
- WVII-TV in Bangor, Maine preempts the program in favor of programming from the shopping network Jewelry Television.
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