- A death RAY?
- Well, that's what he called it.
The Big Bang Theory Season 1, Episode 4
Locked himself in his room
and built a sonic death RAY.
The Big Bang Theory Season 1, Episode 4
Ray Liotta's signing
autographs until 2:00.
The Big Bang Theory Season 12, Episode 17
♪ A cathode RAY tube
without an electron gun ♪
The Big Bang Theory Season 7, Episode 6