Oh, how about "Rocket Man"?
The Big Bang Theory Season 5, Episode 15
sold the ROCKET fuel
on the black market.
The Big Bang Theory Season 5, Episode 5
Someone in this room
gets to take a ride on a ROCKET.
The Big Bang Theory Season 7, Episode 16
Gonzo, this ROCKET scientist,
was moving No-Doze's body...
Breaking Bad Season 2, Episode 2
before you get
in that ROCKET.
The Big Bang Theory Season 5, Episode 24