There is a long tradition of home r2r enthusiasts recording live broadcasts from FM radio. Some cities had high quality FM broadcasts live from the concert hall or ballroom, or occasionally from a recording studio. Sorry, I don't know of any currently being broadcast in the SF Bay Area. KCSM does have a show on Suday evenings called Sunday Night Suites that broadcasts location recordings of jazz made specifically for that show. They're good, but they are still recordings, not direct live feeds.