I recently spent a week in Orange County, and kept K-Earth on the car radio much of the time. You Southern Californians should consider yourself lucky - what a great station. I understand that the play list would probably get annoyingly repetitive after awhile, but the formatting, live DJs, jingles, etc - are brilliant, IMO. As a baby-boomer, Shotgun Tom Kelly is a bit of a throwback to the Real Don Steele, so I enjoyed that. Cristina Kelly's show included a lot of sound-bites from 70s era commercials, news reports, etc - she's very pleasant to listen to. And the station lets Charlie Tuna talk quite a bit - much more than he was able to 40+ years ago at KHJ, which I found a bit ironic.
In the Bay Area, all we've had in the last few years is CBS's pitiful and failed attempt to resurrect KFRC, and now a weak Clear Channel version - first billed as "Oldies 103.7," and now "the New 103.7" with voice-tracked DJs.
KROQ sounded pretty good to me, too, though my son (24) who came with us is the expert on current music. Much better than our Live 105.
If I lived in So Cal, I would probably still be listening to radio. As it is, it's either NPR or i-pod for me at this point.