Originally Posted by MisterV View Post
In "The Patty Duke Show" the premise is that there are two identical cousins; not siblings: cousins.

I scratch my head in befuddlement wondering about the biology which led to this result.

It's a stretch, but the closest I can come to a quasi-plausible explanation for identical cousins is that the same guy impregnated identical twin sisters, or in the alternative the same woman was impregnated by identical twin brothers.
back then tv viewes bought almost anything

a talking horse, identical twin cousins, a mother reincarnated as a car,...but even more far fetched that all those that i was just re-introduded to and have watched 2 episodes when i am in NV....

thePaul Lynd Show.....where he played a heterosexual dad with a daughter and wife.......now THAT is a stretch( lasted 1 season)