Penny, I'd like you to meet Tom.
Uh, Penny, this is Tom.
The Big Bang Theory Season 2, Episode 3
(PENNY SIGHS)
The Big Bang Theory Season 1, Episode 13
Penny, a salon is a gathering
where intellectuals entertained each other...
The Big Bang Theory Season 8, Episode 18
Girls like Penny never end up with guys
who own time machines.
The Big Bang Theory Season 1, Episode 14
If Leonard wasn't with Penny,
The Big Bang Theory Season 7, Episode 11