KFMB began on 1450, then to 550, then 540, then in about '65 to 760 where it resides today. It was a CBS affiliate for most of its existence. KOGO began as KFSD, it was NBC, its music mainly MOR with hosts like Ernie Meyers. KGB was on am, 1360, an MBS affiliate, it aimed for a mature audience with news and discussion programs, it could arguably be called an all news station but you would probably lose that argument. I think Art Linkletter started on KGB long ago. It was the "boss radio" station of the '60's in SD. KCBQ began as KSDJ, it too figured at one point as a CBS affiliate in the early '50's, but when the Bartell group bought it it became one of the city's first and always most innovative rock stations, a legend. In the '50's KSON 1240 split format with TNT (tunes, news, time) from 6 am to 6 pm and then elevator music with The Navigator on Cloud 9 til 6 am. It was very successful with country, now it streams Spanish religious services. KSDO began as KYOR, in the '50's it was the Sherwood Gordon station with, again, elevator music, it became a news station in the early '70's and did quite well, it now too streams Spanish religious services. KECR began as KBAB, then was KDEO, another very innovative rock voice of the '50's and '60's. It became KMJC, an oldies station, in the early '80's, then religious. One of the best rock stations ever was XEAK Mighty 690 with a signal I could pick up in Oregon, it too was arguably the first all news station beginning in 1961 as McClendon's XETRA (there is a faction giving the first news station credit to SF's KFAX), it did elevator music during the very best era ever of rock, the late '60's and '70's, did oldies for a time after that, was again innovative as one of the first sports stations, did standards for a while, and now is Spanish, perhaps streaming from XEW in Mexico City. XEPRS began as XERB, when I was a kid it did country, it always had a sprinkling of evangelists and faith healers interspersed with race results, the Wolfman howled here in the '70's, I think the fictional station in "American Graffiti" was modeled after it. It did doo wop & oldies for a few years, it did Spanish, and now is a sports station, replacing XETRA. I don't know if that qualifies as "great" knowledge but its what I know.
