I don't know if the link to that web page is from the same person who posted a while back that KBFH was issue on 4 channel discrete quad reels and then dropped off after a lot of folks questioned the existence of Q4 KBFH but I am unaware of any KBFH quad after '77 and the possibility of one broadcast in '78 which all were sent to stations on 2-track SQ encoded reels. Any Q4 reels were only privately traded.77, huh ? I originally thought 78, myself but it would seem KBFH issued quad reels up to Feb 1980 . Listings here-
http://www.eclipse67.com/kbi.htm
As to that BOC recording the evidence is somewhat lacking. Unless it's a rebroadcast from an earlier show , and unless it's
encoded , it surely can't be considered .
thought I'd toss it up for comments.