
If it's a fight that doesn't
INVOLVE any touching,
The Big Bang Theory Season 12, Episode 13

But it does INVOLVE air travel.
The Big Bang Theory Season 3, Episode 15

How does that INVOLVE air travel?
The Big Bang Theory Season 3, Episode 15

INVOLVE so much science,
I'd have proposed years ago.
The Big Bang Theory Season 11, Episode 12

Yes, but they all INVOLVE
a Green Lantern and a power ring.
The Big Bang Theory Season 1, Episode 2