The College radio thing with BMI/ASCAP appears to have emerged in the late 80s early 90s.
SESAC has Bob Dylan, I believe, and had Aerosmith for awhile, but that was just for show. They are, as Raccoon said, basically country music (they collected for C.W. McCall's CONVOY if memory serves).
The fundamental problem with BMI, and to some degree ASCAP, is the unfairness of these "non profits" beating up on club owners and smaller stations with no mercy, yet a VP of Writer Relations at BMI will meet me in his
office in NY and give me every excuse not to pay. Also, BMI informed me that they pay jazz artists the way that ASCAP awards regional artists (funny that BMI won't pay pop and rock artists in that fashion). Well, I know more than a few respected jazz artists and they never KNEW that BMI pays for live shows to jazz acts.
BMI, by the way, charges nightclubs but only pays the Top 200 concerts of the year. Two friends of mine co-wrote a major Bette Midler hit that BMI never paid them on. Bette Midler, 6th biggest grossing tour of 2003-2004 with 56.something million. BMI with revenues around 680 million. After numerous letters "Oh, you are right, it was on the playlist!" DUH. Now if BMI can't manage the Top 200 concerts of the year and their playlists (the rest of the club "monies" go to "jukebox royalties", which is another scam), you know they could care less, and even less than caring less for the "little artists".
My point: Bob Bittner has a good argument. You have to pay them or there's trouble that will brew, BUT, you can fight them with this information and probably win the argument. That's one avenue if Bob decides to stay with music and not sell the station to WFNX.