I am fascinated that you list "Pruitt's of Southampton" as airing in the UK. I had heard that it aired their in the 80's a few years back but never had confirmation from anyone until your posting. This is one show I would love to see released onto DVD as it is extremely obscure. I have only managed to view 3 of the 30 episodes and would love to see the entire series . I wish some station, somewhere - anywhere, would air this in syndication again or better yet, be released onto DVD.
Trust me, you aren't missing much. I was eager to get it too back in the early 90's when a fellow VHS tape trader offered me some episodes but it became very clear to me why it got cancelled very quickly.