From a recent Billboard interview:
"Q:Then you joined SCTV, which featured so many hysterical musical-themed bits.
"A: When I first got onto SCTV, we were working in a vacuum. We had no idea there was an audience. We were just making each other laugh. I had done, for example, a parody of Canadian Content where I'd re-written a song of Gordon Lightfoot's. [Cast member] Dave [Thomas] did all these bogus K-Tel commercials, so we came up with the sketch 'Gordon Lightfoot Sings Every Song Ever Written.' Then, they had the budget to get a local country-sounding band in Edmonton to do a few bars from every single one of these songs I wanted. When I read that at the table, it was very clear what it was. It was a bit everybody could understand. That's the way things happened, doing a post-production show like that."
http://www.billboard.com/bbcom/searc..._id=1001842605