TV series example of the word

The Big Bang Theory Season 8, Episode 18
She played Guinan on <i>Star Trek: Next Gen.</i>

The Big Bang Theory Season 8, Episode 18
- Penny, <i>Next Gen</i> refers to <i>Star Trek...</i> - Shut up.

The Big Bang Theory Season 11, Episode 13
# I'll run out of oxy... gen. #

Game of Thrones Season 8, Episode 2
(GEN DRY EXHALES SOFTLY)