Very interesting trivia! I'd also always wondered what the cast of the Brit. version looked like.
Speaking of recordings,in the past 3 years I've acquired 3 things related to the show. The "All In The Family" album (which actually was certified Gold in sales!)

The Carroll O'Conner solo LP and a "very scratchy" Columbia Records 45rpm of the closing theme,"Remembering You".
That would be O'Conner doing a vocal version of it I should say. :
"It's all over now,it's all over now we're through."
"..and tomorrow I can start in..remembering you". (etc.)
Just months after I bought that 45rpm,O'Conner was gone.