On February 18, 1965, 107.5 signed on the air as KNOK-FM, an R&B and Soul music station. It simulcast its sister station KNOK AM 970, with both stations owned by the Chatham Corporation. The station was later sold to Black Enterprise magazine founder Earl G. Graves Sr. under the company name EGG Dallas Broadcasting Inc.. KNOK-FM originally broadcast with 100,000 watts but from a tower only 450 feet in height above average terrain. In 1985, the station became KDLZ while retaining its R&B format. The coverage area was increased and the studios were moved to Cedar Hill after the original studios in Fort Worth were destroyed by fire.
EZ 107.5/The Oasis
In December 1988, Gilmore Broadcasting purchased KDLZ. On December 23, Gilmore picked up the easy listening format and KMEZcall letters from 100.3 to 107.5. The station was then sold to Granum Communications in 1991. On July 4 of that year, Granum flipped the station and format to KCDU with a short-lived classic rock format. A Smooth Jazz format began on November 2, 1992, moving over from 106.1. The Smooth Jazz station took the call letters KOAI as "The Oasis." . In 1996, KOAI was one of three radio stations that fell victim to the radio tower collapse in Cedar Hill on October 12 of that year. KOAI, as well as sister stations KRBV and KYNG, scrambled to get their stations back on the air through an auxiliary tower. "The Oasis"' ratings seemed to escape unscathed in the Fall ratings book that year, but the fate was not as good at the other 2 stations.
MOViN/Mega era
"107.5 The Oasis" remained on air until October 2, 2006, at 5 p.m., when KOAI flipped to Rhythmic Adult Contemporary as "Movin' 107.5." The Oasis then moved to 107.5 HD-2. The station's logo and branding was identical toMOViN radio station KVMX in Portland, Oregon. The initial format change to "Movin'" caused a lot of criticism by listeners of "The Oasis", many of them demanded that the smooth jazz format be reinstated on the traditional signal. On February 17, 2009, at Noon, after playing "Vogue" by Madonna, the station flipped to a Spanish Hot adult contemporary format as "Mega 107.5." In 2010, "Mega 107.5" shifted to a Spanish rhythmic contemporary playlist with a few English-language hits in between. It was competing head-on with KESS-FM for over 2 years, until that station's owner, Univision Radio, switched it to a simulcast of KDXX, leaving KMVK the only Latin Pop-formatted station in the Metroplex for a short time. In late June 2012, it gained another competitor from Univision Radio with KDXX. By mid-summer 2012, the Metroplex had three Spanish-language CHR stations and three English-language CHR outlets, with one of those English-language stations targeted towards Latino listeners. The former "La Kalle 107.9" from Univision Radio changed KESS to "Radio H2O" in late June 2012. KTCY Baila 101.7 was one of its short-term competitors until February 8, 2013, when the station's format was changed. On March 8, 2012, the station's website displayed a message stating "Todo va a cambiar!", hinting at a possible format flip in the near future. However the next morning, it was nothing more than a Daylight saving time announcement. On May 21, 2012, CBS hinted at a possible format flip on either KMVK or KRLD-FM to "AMP Radio", much like its Los AngelesCHR/Top 40 sister station KAMP-FM. The parent company registered 3 web domains. This format change instead happened four years later in 2016, when sister KVIL evolved to Top 40, which flipped to Alternative the following year.
107.5 today
On July 26, 2013, KMVK did flip formats, though to a Regional Mexican format as "La Grande 107.5", making it the 3rd format flip since 2006. The Latin Pop format is now heard on an HD Radio subchannel on 107.5. On February 2, 2017, CBS Radio announced it would merge with Entercom. The merger was approved on November 9, 2017, and was consummated on the 17th. Months after, Entercom struck a new content deal with NBCUniversal-owned-and-operated stations KXAS-TV and KXTX-TV. The latter will partner with this station to bring enhanced Spanish-language news, weather and entertainment information to its listeners, in addition to the current Regional Mexican music format.
KMVK HD channels
In early 2006, 107.5 HD2 began as a Traditional Jazz format to complement "The Oasis" before the station's format was relocated to this secondary HD Radio channel. On November 11, 2015, 107.5 HD2 began airing a Tejano format under the name "Fierro". In early February 2016, KMVK launched its HD-3 subchannel, originally named as "Mega 107.5 HD3" using the slogan "Numero Uno En Exitos", broadcasting a Latin Pop format that previously aired on KMVK's main frequency from 2010 to 2013. As of 2018, the channel was renamed "Dale!" while keeping the current Latin Pop format.
