Before 2012 Formerly known as KSFE-LP, the station became the valley's
CW affiliate on August 6, 2007. Despite the fact that it was not carried on
Time Warner Cable at the time, it was decided to brand the station as "The CW 21" to reflect the channel's eventual cable slot. For about a year, programming from The CW had been seen on cable-only affiliate "KMHB", which previously served as a
WB affiliate from 1998 to 2006. KSFE began broadcasting a digital signal on sister station KNVO's subchannel 48.4 around the same time, enabling much of the Rio Grande Valley to receive The CW over-the-air. In 2010, KSFE-LP began broadcasting as a low-power digital channel and can be found on RF channel 20, displayed as 67.1. Despite the fact that The CW was the primary affiliate, it was decided, in late 2011, to make the main channel a translator of then-primary Fox-affiliated sister station, XHRIO, with The CW pushed to the second subchannel.
Since 2012 In 2012, the call letters were changed to KFXV-LD to better reflect the station's status as a translator of a Fox station. Furthermore, the station began to identify itself by the KFXV calls and channel despite the fact it was still branding itself as channel 2. It was also announced that The CW would henceforth be referred to as
KCWT, also a low-power station owned by Entravision, located on analog channel 30. The analog feed of The CW was moved to KCWT, and The CW now airs on that station (using virtual channel 21). Around that time, it was announced that a new Spanish-language network by Fox called
MundoFox would be coming to the Rio Grande Valley when it launched in August 2012; reports indicated that a full-power station owned by Entravision would assume the affiliation. While KFXV remained the Fox affiliate, XHRIO broke off and began airing MundoFox programming on August 7, nearly a whole week before MundoFox's scheduled full launch date, XHRIO began airing MundoFox on 2.1 calling it a "test signal". The next day, via Fox Rio 2's Twitter feed, it was officially announced that MundoFox would be coming to XHRIO 2.1 and Fox would remain on KFXV 67.1. Although this switch had already happened unofficially, it officially took place on August 13, 2012, effectively splitting XHRIO and KFXV into two separate and distinct channels, making KFXV 67.1 the official Fox affiliate for the Rio Grande Valley. This also marks the first time in the network's history that the valley's Fox station is of American origin, with an American callsign. Despite moving the Fox affiliation from channel 2 to 67, the station was not rebranded from its "Fox 2" moniker, making KFXV's primary branding match its location on satellite systems rather than its virtual channel. This was changed in 2016, when the station began branding with its call letters. On May 27, 2020, KFXV-LD became KMBH-LD. This came after KMBH was bought by Entravision and became a full-power Fox affiliate as
KFXV. On October 1, 2021,
MyNetworkTV (which was carried on KFXV and KMBH as a secondary affiliation) moved to
Antenna TV O&O KGBT-TV (channel 4) also as a secondary affiliation. ==KXFX-CD history==