WCMH-TV (channel 4) is a television station in Columbus, Ohio, United States, affiliated with NBC and owned by Nexstar Media Group.

In 1952, following the release of the Federal Communications Commission (FCC)'s Sixth Report and Order which ended the four-year freeze on station license awards, a VHF frequency realignment resulted in WLWC being forced to move to channel 4, trading channels with then-NBC-owned WNBK (now WKYC) in Cleveland;[6][7] the switch took place in June 1953.

[8] The Crosley TV station group would later grow to include WLWA (now WXIA-TV) in Atlanta, WLWI (now WTHR) in Indianapolis, and WOAI-TV in San Antonio.

In 1969, the FCC enacted its "one-to-a-market" rule, which prohibited common ownership of AM radio and television stations with overlapping coverage areas under certain conditions while grandfathering some already existing instances.

Avco's ownership of WLWC, WLWT, WLWD, and WLW radio (a 50,000-watt, clear-channel station which can also be heard throughout much of eastern North America at night) was granted protection under the clause.

But as a condition of maintaining three television stations with common coverage areas Crosley/Avco operated WLWC, WLWT, and WLWD with shorter transmission towers.

WHIZ-TV would also serve somewhat as a buffer for WCMH-TV after WTAE-TV in Pittsburgh signed on in 1958 and had to "box in" its signal to protect then-WLWC and three other stations also broadcasting on channel 4.

NBCUniversal placed WCMH-TV on the market January 9, 2006, along with sister stations WJAR in Providence, WVTM-TV in Birmingham, Alabama, and WNCN-TV in Goldsboro, North Carolina.

Media General, the Richmond, Virginia-based company which already owned five NBC affiliates in the southeastern United States, announced it would purchase the four stations on April 6, 2006; the sale was finalized on June 26, 2006.

(WJAR and WVTM were sold to Sinclair and Hearst Television, respectively, in 2014, while WNCN switched its network affiliation from NBC to CBS in 2016.)

Channel 4 has also emphasized community involvement and reporters with local roots such as current evening anchor Kerry Charles, a native of Columbus's Linden neighborhood.

In 1990, personal reasons forced Mona Scott to leave channel 4, and she was replaced at the anchor desk by Angela Pace.

For much of the first decade of the new millennium, WCMH also won the morning news race, but the numbers dropped precipitously after the broadcast moved into NBC 4 on the Square, a downtown studio facility located on Broad and High streets, in 2008.

[16] In January 2011, the station debuted a new rounded logo and new image promos emphasizing its long-time personalities and community involvement.