|City of license||Dallas, Texas|
|Broadcast area||Dallas/Fort Worth Metroplex|
|Branding||100.3 Jack FM|
|Slogan||"Playing What We Want"|
|Frequency||100.3 (MHz) (also on HD Radio)
100.3 HD-2 for "The Strip" (Las Vegas related Standards)
100.3 HD-3 for The Indie-Verse (Indie Music)
|First air date||1965 (as KBOX-FM)|
|Callsign meaning||K JacK K|
|Former callsigns||KBOX-FM (1965-1973)
(CBS Radio Texas, Inc.)
|Sister stations||KLUV, KMVK, KRLD, KRLD-FM, KVIL
also part of CBS Corp. cluster: TV stations KTVT and KTXA
KJKK (100.3 FM, "Jack FM") is an American radio station in the Dallas-Fort Worth area of Texas. It broadcasts an adult hits music format. KJKK is owned by CBS Radio and the broadcast license is held by CBS Radio Texas, Inc.
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This station started as KBOX-FM ("K-Box"), playing easy listening and occasional jazz music in 1965. Although it was the sister station of KBOX-AM 1480 (now KBXD), a Top 40 and then country music giant during the 1960s and 1970s, the two stations never simulcasted until 1982, when AM 1480 became KMEZ-AM. In 1973, the call letters were changed to KTLC (meaning Tender Loving Care for your ears) while maintaining its easy listening format. 3 years later, the callsign was changed once again to KMEZ and carried the new branding EZ 100, while still maintaining the easy listening format and was a flagship station for SMU College football.
In 1988, KMEZ was purchased by Summit Broadcasting. After the purchase, KMEZ moved to 107.5 FM, replacing KDLZ. After 2 days of stunting with "Jam On It" by Newcleus, the station changed formats to Urban Contemporary and changed its call letters to KJMZ and branding to 100.3 Jamz on Christmas Day, 1988. During its tenure as KJMZ, on-air personality Russ Parr got his start in the radio business before going to Washington, DC to jumpstart his syndicated morning show, which, at one time, aired on KBFB. In 1995, Granum Communications (later bought out by Infinity/CBS Radio) bought KJMZ and KMEZ (now KMVK), and tweaked the format to Classic and Modern R&B (Urban AC) and renamed the station as KRBV, V100 on September 1, 1995; the KJMZ calls were picked up by a station in Las Vegas (now KMXB). In 1998, KRBV re-added hip hop in its playlist, and was revamped as Adult Mix V100.3. It was one of the Top Ten stations in the market until a lightning storm knocked out their transmitter. KRBV never returned to its glory days and the ratings sunk, most of it due to philosophical differences in direction of programming for KRBV.
On March 12, 1998, the station began stunting by looping songs from artists such as Rob Base and Eminem. 3 days later (March 15), the station changed formats to Rhythmic-leaning Top 40 and renamed the station Hot 100, calling itself DFW's Party Station. On May 28, 2001, at 11 AM, the station changed its name again to Wild 100 while maintaining its Rhythmic-leaning Top 40 format with the first song of Wild being "Wild Thing" by Tone Loc, and became the Dallas affiliate for the Austin-based "J. B. and Sandy" morning show. On March 9, 2002, Wild 100 exhumed an old KLIF stunt by declaring themselves a "thing of the past"; the station went dark for about three hours and came back with the same format and name. That same year, J. B. and Sandy's show was terminated. The station was still under the ownership of Infinity Broadcasting; however, it would become a CBS Radio station when Infinity was renamed.
On the morning of April 1, 2004, Wild 100's morning show was replaced by The Russ Martin Show. This edition of the show was taped earlier that week; this stunt was a warning sign of the station's future format change that came later that year. Later that day, Russ Martin was back on the station that "he left from Wild 100," Live 105.3, where he got calls from Russ Martin show listeners who thought this change was for good.
Later that year, on July 1, at 8 AM, the station interrupted their morning show and began stunting with a mix of music and soundbites featuring "Jack." At Noon, the station flipped to Adult hits as 100.3 Jack FM. The transition started with the "Wild" imaging voice Sean Caldwell becoming more fatigued after the major fanfare about Wild 100.3. It then turns into a conversation between the Caldwell and Howard Cogan (Jack FM's station imaging voice) about how the station was "missing something". After the Caldwell leaves for South Padre for the 4th of July, Cogan sighs with relief, saying "Glad that's over", and gives the introduction of its current format. After a quick sample playlist (consisting of songs from Coldplay, ABBA, Jesus Jones, Tommy Tutone, Frankie Goes to Hollywood, Smash Mouth and a few others), Cogan then welcomes listeners to "100.3 Jack FM" and invites them to hear "a bunch of songs in a row" while they "clean up the studio", with the first song of the format being "Where the Streets Have No Name" by U2. The KRBV call letters would also be changed to KJKK. The station has been jockless since Jack FM first signed on, and rejects all song requests.
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