What a great thread!
I live in St. Louis, and have relatives in Fayetteville. Northwest Arkansas is a place that is near and dear to my heart. I looked forward to my trips there, and the radio stations there appealed to me more than the radio stations in my area.
The first time I paid attention to the radio dial there was in the fall of 1975. Some of the stations I remember were:
KFAY--1250 kHz (Country)
KUOA--1290 kHz (A/C)
KBRS--1340 kHz (Full Service AC-MOR-Country)
KAMO--1390 kHz (Country?)
KHOG--1440 kHz (Top-40)
KSPR--1590 kHz (Full Service AC)
KUAF--88.3 MHz (Rock)
KKEG--92.1 MHz (AOR)
KAMO--94.3 MHz (Country)
KNWA--103.9 MHz (Easy Listening)
KCIZ--104.9 MHz (Full Service AC simulcast with KSPR)
KMCK--105.7 MHz (AC)
My favorite station at the time was KSPR and KCIZ. It was an unusual mix of songs that featured a lot of songs that were in the 70-100 range of the Billboard Hot 100 (including some "Bubbling Under's) and Easy Listening (now Adult Contemporary) charts. It had a local full service style that I really liked.
In 1976 that simulcast ended, with KSPR staying live and KCIZ being automated. They began carrying "American Top 40" sometime after April 1976 on KCIZ. By the summer or fall of 1976, KSPR went country, and kept that format until at least 1984. Dewey Johnson was the owner of the stations during this time, and some of the personalities I remember there were Dan Hentschel, Chuck Bushong, and John Judd.
Here are unscoped airchecks of KSPR and KCIZ recorded on 15 April 1976. The files are 192/44.1. The sound quality isn't great--it was recorded using a built in mike using a Panasonic portable tape recorder. I cleaned up a lot of midrange so it should at least sound listenable. Here are the links:
http://www.4shared.com/file/38766952/c71cffd3/KSPR_15_April_1976.html
http://www.4shared.com/file/38766949/49d5171a/KCIZ_15_April_1976.html
KBRS referred to themselves as "The Voice Of Springdale." It had a similar full service sound to KSPR, but was aimed at an older audience. They had a remote unit, which included turntables at a Ford dealership that was located on Meadow in Springdale (my grandmother's house was located on that street very close to US 71/62-B). The station shifted its format to Adult Standards in the 1980's, and must have closed down in the late 1980's.
KHOG was the dominant Top-40, and KFAY was the dominant Country formatted stations of the time. KKEG was some version of AOR and Top-40 throughout the 1970's. KNWA was a very popular Easy Listening station (my aunt was on a bowling team sponsored by the station).
KMCK went from 50 kW to 100 kW and flipped to CHR and adopted the "K-106" slogan in the fall of 1979. It was the first 100 kW station of the region. It was known as the "Friendly Giant." I first heard them in the summer of 1980 and was hooked immediately. It was one of my favorite stations of the region from then on. Their studios were in Siloam Springs and their sales offices were in Fayetteville. Both KUOA and KMCK were still affiliated with John Brown University until 1983 when it was sold to Apple Broadcasting. I remember hearing Dr. Demento on 105.7 on several visits there. That station had a great format. They were breaking artists months ahead of St. Louis.
On the AM side, KURM signed on in 1979. KHOG flipped from Top-40 to Country in the early 1980's (they may have been Oldies for a time). They went from 1440 kHz to 1030 in 1984 and was the first to adopt AM stereo in the region. Eventually KFAY and KHOG swapped frequencies in the late 1980's, and for a time referred to themselves as "Country-Rockin' KFAY). Does anyone remember KFAY running 24 hours on the Fayetteville cable system when they were a 1250 kHz daytimer? KSPR eventually changed formats and calls to KQXK as Oldies' "Sweet 16."
KUAF dropped their student run format and became an NPR affiliate, although there was a student station on the cable system, which I heard in 1985.
KCIZ kept their automated AC format until 1983 or 1984, and adopted their KC-105 slogan. I could not believe they actually went dark before they went on as an Easy Listening station.
KNWA was sold in 1983 and became KKIX. They (and KNWA) operated out of an old gas station in their early years. I saw that building in 1985, and it was a cool building. I could not believe this 3 kW FM could dominate a market like they did in 1985.
KEZA went on in 1982, and I believe KBVA (106.5) did that year or not long after. KBVA was available on C-Band satellite receivers for decades. With all the changes going on in NW Arkansas, I'm surprised that station is still doing an Adult Standards format.
While K-106 may have changed to Power, the spirit of the station didn't really change all that much. They still played a very different mix of CHR compared to other markets. I liked their "Arklahoma" simulcast with KZBB Poteau from 1991-2. That concept opened the door to Music Channel One, which was Power's format syndicated nationally.
Even though KZBB was a Ft. Smith station, I got it easily in Fayetteville. I remember it as KLCO-FM as a CHR with a 2000 ft. tower. For a while they were religion as KLUP, and then were known as "Z-98," playing a lot of alternate mixes of CHR hits. Eventually they became "B-98" before and after their simulcast with Power.
Northwest Arkansas has always been a unique place. The conneciting highways and its proximity to Tulsa, Joplin and Springfield (MO) play a role here. So did the cable systems, carrying more stations from the above cities than Ft. Smith or Little Rock. On my last trip to the region in 2005, I was stunned at how the area has changed and grown. Besides Wal-Mart, Interstate 540 has probably changed the landscape of the region as well. I only hope the area retains its history and hospitality over the years.