WANTED: Any Episode with the Purple People...Paul and Pauline Purple

I am looking for any episodes with Paul and Pauline Purple (a.k.a. the purple people from Planet Purple) in them. As a kid I was fascinated with them, they looked like giant purple gingerbread men/women, lol.

They have to be the most obscure characters of all time. I can't find them anywhere. I don't think they are available in the usual places so I'm trying to find episode/s to purchase that somebody may have recorded at home or may have come in an old defunct collection.

I think Paul and Pauline are in the following episodes:

Season 5 (1972) Episodes 42, 53, 44 which are show numbers 1237, 1238, 1239 respectively

Season 7 (1974) Episodes 30, 31, 32, 33, 34, 35 which are show numbers 1355, 1356, 1357, 1358, 1359 respectively.

I am dying to see my old friends Paul and Pauline Purple again, I haven't seen them since the 70s. Please contact me if you can help me track them down, anybody. Thanks!