Recently, local '60s and '70s oldies outlet KAZG added a one-hour show playing nothing but pre-Beatles era oldies from the 1950s and 1960s. The station's ratings are in the toilet but it still manages to get more advertising, especially local advertising, than its local competitor, KOAI-FM. And KAZG is an AM outlet with a translator which covers most of the market but not very well. It also is carried on the HD2 channel of co-owned 100kW alternative outlet KDKB.
How can this be, you may ask. Well, while I don't have any inside information, here are my guesses. KAZG is one of five radio stations in Phoenix owned by Hubbard and the only AM music outlet in that cluster. I'm guessing that Hubbard's sales force is selling advertisers the entire package of music stations--KDKB for alternative rock; KUPD for hard rock; KSLX for classic rock; and, we'll throw in this little AM, KAZG for '60s and '70s oldies. Since those rock stations are the only rock stations in the Phoenix market and since the three FMs are doing *very* well in the Phoenix ratings, Hubbard, I think, can get away with this. (It's somewhat ironic but Hubbard has a second AM station, sports KDUS-AM, that is leaning more towards sports betting these days and which, I sometimes think, will be the next Phoenix AM station to close its doors forever but I digress.)
That still doesn't answer the question about the pre-Beatles oldies hour. That hour is heard between 7am and 8am (1400 and 1500 UTC) on Sundays and is sandwiched between the station's required public affairs output (6am) and the syndicated "Beatles Brunch," with Joe Johnson at 8am; in other words, it's during an hour of the day on a day (Sunday) that advertising agencies don't really consider very much. KAZG does heavily promote its pre-Beatles show during its regular programming through sweepers and the station occasionally plays (like once every three or four hours) something between 1961 and 1963 that you wouldn't otherwise hear outside of the pre-Beatles show. I think that helps keep interest up. The pre-Beatles hour has been running for the past five or six months now and we'll see if it's still on the air come summer.