I recently learned why after the first couple of seasons Floyd was always shot sitting in his barber chair: do to some serious illness he wasn't able to ambulate normally. I forget the details, but I remember that Andy insisted on keeping him on the show.
My fave episodes were when the backwoods Darlings with their horny, tuneful daughter would come to town, and Elmer Kelp, played by funny man Howard Morris. BTW wasn't that his name as the Dad of the NUTTY PROFESSOR in the original release
I never caught on to that 'till now!