I remember there was a Simpsons episode that mocked it, I don't know what episode or what season. I do know the show aired in the 60's or 70's.
It's basic premise is:
A man, probably a spy, was captured and help on this island that has peculiar things on it.
The people also held on the island all dress in turn of the century clothing or something similar
There's giant bubbles that go around catching/killing people
All the captives are known as a number and I think the ultimate point of the show was to find out who number 1 was
I just remember that the show was very strange and not much of it made sense and it wasn't supposed to