
...Star Trek: The Next Generation
Geordi La Forge without his VISOR...
The Big Bang Theory Season 1, Episode 14

...Star Trek: The Original Series
"Trouble With Tribbles" crossover episode.
The Big Bang Theory Season 2, Episode 20

Wil Wheaton's character
on Star Trek.
The Big Bang Theory Season 5, Episode 5

Because girls are always like,
"Ooh, that guy owns two Star Trek uniforms...
The Big Bang Theory Season 6, Episode 8

Star Trek script?
Yeah. I gotta write it down, is all.
Breaking Bad Season 5, Episode 9