Yep, I remember my dad (who loved oysters) saved a couple cans of them.
One the old version, brand name N*****head, with an illustration on the can of a poorly dressed, unkempt black guy holding up a dripping oyster in his fingers about to let it drop into his mouth.
The new version, brand name NegroHead oysters, had a headwaiter-looking black guy in a tux, holding the oyster on a silver oyster fork.
I always wondered jus what they would have done if they had needed to come up with a 3rd version!
From the same episode:
“My daughter is like a needle in a haystack!”
“That’s not true - I’ve seen her picture, and she’s very attractive.”
Sorry for continuing the hijack. 
Or, Andy Sipowicz… who is Archie Bunker as a cop.
((Who I must admit, I had a hard time watching when I watched that show.))
[hijack]
Well, sure. Ellison bitches about everything. 
[/hijack]
“Ok, after looking around I haven’t been able to find the original of that joke either. I could’ve sworn I heard it here attributed to them, though. Sorry 'bout that.”
Don’t be. I’m familiar with the joke and have posted it on this board a couple of times. It first appeared on film, with Gracie dressed like a nurse. I can’t recall if it was in a feature or a short.
Since the OP seems to have been answered I’ll just share my favorite Gracie moment.
George walks into the living room and sees a flower arrangement and says how pretty it is.
Gracie: Yes it is isn’t it. And it’s all thanks to you.
George: Thanks to me? What did I have to do with it?
Gracie: Well you remember that yesterday I told you I was going to visit old Mrs. Williams in the hospital?
George: Yes.
Gracie: Well you said I should take her flowers. So when she wasn’t looking, I did.