I can answer this firsthand. The Reid family's storage unit.
Hmmm...so maybe most of the three-year run exists then? I'd love to see this on the main GameTV channel eventually.
I've missed some episodes but I've been trying to catch them whenever they've been on. There doesn't seem to be a linear pattern in which they're running them - an episode from Sunday afternoon was played again this evening, so they're not doing same-day repeats. If my count is correct, I think they've run about 15 separate episodes (as of this writing).
I don't think the show was heavily syndicated in the US. In my out-of-town TV Guides between 1971 and 1974, I only recall it being listed in a couple of them, if that.