That's what I expect, although I'm sure there are some folks on here that know this stuff way better than I. There were supposedly other stations in the country broadcasting in quad, at least for a time, and I have to assume that there would have to be some stereo stuff that have to be "fudged" up to four channels, as there couldn't have been enough encoded material to broadcast day in day out. Kind of like the early days of MTV, where they started with something like 70 video clips and crossed their fingers that the industry would catch up to them.
Marsden,Well you guys are getting me excited. I loved the KBFH as a teenager and listened to it often. At the time I had a Radio Shack basic SQ decoder but for some reason was under the impression they had broadcast in QS. My bad, but the decoder I had wasn't going to do much, and who knows what the phasing was like by the time it reached my receiver. In 1976 I made a recording of a show that was referred to as 'The Best of the Biscuits' eating me to assume it was a rebroadcast of an earlier recording. It was Linda Ronstadt. Now me being into quad and it being 1976, it was recorded onto a Maxell 8 Track tape. Again, its terrifying to think what the phasing was like, but I am fairly sure that I still have that tape (don't judge me) so now I am thinking I want to dig it out and run it through my Audionics S&IC. What could go wrong?
If you wanted to make it simpler for yourself, you can find a good quality air check version of this particular show at one of the trader sites. It's a good show, but not sure what it would sound like if decoded.