Okay Last night I was watching Archie Bunker's Place on TV Land. It was #5 "Edith vs. the Energy Crisis' and I saw Edward Marshall, who played Harry Johnson #2 in #669 & Ezra Braithwaite in #764!
In it, there is an energy crisis. Archie gets a fever during the middle of it. Edith calls Dr. Sydney Shapiro. He arrives, wearing a coat. He is played by Mr. Marshall. Anyway, he takes off his coat to reveal a disco/leisure suit! Edith was really surprised by this. He did have some funny moments in the episode. When he goes up to Archie Bunker's room, Archie, thinking he's Edith (he's half asleep), goes 'If you cared for me you would be in this bed with me', to which Dr. Shapiro remarks 'You'd rather not'. I thought Edward Marshall was pretty good in the episode!