Founded in 1989 as the second over the air television station in Brooklyn, the station didn't go on the air until 1998. Originally on channel 38 as a construction permit, it was later moved to channel 3 due to a reassignment of channel 38 to WPXU-LPAmityville, New York. Throughout the 1990s the station ran The Box, and later MTV2 through transfer of ownership from Viacom. At that point in early 2006, it switched to Cornerstone Television. On August 17, 2007, Renard Communications announced that would sell WBQM-LP, along with, at that time, sister station WMBQ-CA to Equity Media Holdings for $8 million. However, the transaction had a closing deadline set for June 1, 2008, and either party could cancel the sale if it were not completed by then. The sale was not consummated. As of December 8, 2008, Equity Media Holdings was in Chapter 11 bankruptcy.
As WBQM-LD
In February 2012, Renard reached another deal to sell WBQM-LD, this time to Buenavision TV Network NY, LLC. As of February 2013 WBQM-LD joined an affiliation with CNN Latino and transmitted CNN Latino's signal on virtual channel 3.1 and 3.4, while the local Buenavision signal was on 3.2. As of November 2013 its virtual channel changed from channel 3 to channel 51, although its real channel frequency on channel 50 didn't change. CNN Latino was removed in 2014 to join WRNN-TV thus returning to a Spanish independent station.
As WNWT-LD
On December 9, 2018, BuenaVision agreed to sell WBQM-LD to PMCM TV for over $300,000. The deal, which was completed on February 19, 2019, made WBQM-LD a sister station to WJLP. On April 18, the station changed its callsign to WNWT-LD, and then on May 1, it became a primary NewsNet affiliate. In late July 2019 WNWT-LD moved from channel 51 to channel 6 and later to channel 18 which is currently airing weather reports simulcasting WJLP 33.10 before switching back to NewsNet a week later. At the same time WNWT-WX has moved to its second sub channel. On August 1, the station switched to a channel 37 virtual channel, a rare assignment in broadcasting in North America, likely to prevent adjacent-market confusion with Hartford, ConnecticutUnivision affiliate WUVN, which has long held channel 18. The physical channel 37 is reserved by most broadcasting authorities for the purposes of radio astronomy and medical telemetry, though a PSIP assignment of WNWT-LD's VHF physical channel otherwise causes no interference for those purposes.