106.9 in San Francisco.
I know of one recent example of a religious, um, conversion, which was another swap, in Des Moines, where Iowa Catholic Radio and a Spanish-language broadcaster swapped AM and FM stations, with the commercial broadcaster ending up with 1150, the former KWKY. I could think of a couple of other examples, but I'll hold off because this has been enough of a runaway thread already.
Regarding KCBS's coverage:
The directional patterns, whether day or night, favor the SSE, more so at night but daytime coverage also does not go as far north as it does south. You can't get it in Eureka but you can get it in Paso Robles.