
Uh, we ran out of candy on Halloween,
I was just giving everything away.
The Big Bang Theory Season 10, Episode 10

A time machine from a science-fiction show
has nothing to do with Halloween.
The Big Bang Theory Season 6, Episode 5

Halloween.
Oh, yeah.
The Big Bang Theory Season 12, Episode 24

You know, I used to throw
Halloween parties all the time
The Big Bang Theory Season 12, Episode 6

Okay, well, I'd offer
you Halloween candy,
The Big Bang Theory Season 5, Episode 7