Mistaken for period piece
A show about the Xties becomes dated as well and is now thought to be originating from that time
I'm pretty sure there are now kids running around thinking that 70's show is actually from the 70's. I didn't see Happy Days as a 70's show about the 50's either. I don't see a trope of this yet however. Also, I know there's a good quote from a show with a black guy with his name in the title Ernie something... his daughter tells him she's dressing up for a seventies theme party and she's going as one the characters from that 70's show and he keeps asking which one.
Hello, Unknown Troper. You'll need to get known to lend a hand here.