Yes, I remember the "buffetteria" in Canada. I don't recall when it changed but the early 1990's is probably a good guess.
When we ate there last year, I didn't want to go. I told my husband all about how it was a buffet kind of like Luby's and the one time I had eaten there (who knows how long ago) I didn't like it. So when we got in there I was super confused because I recognized the place and knew that I remembered it being a buffet. So my BIL said he didn't think so. Well, this is the first time I've seen someone say that it was a buffet, so now I know I'm not crazy!

Anyway, I loved it! I'm glad we went, but the wait to sit was really really really long!