How do you meet girls playing the CELLO?
The Big Bang Theory Season 6, Episode 18
Leonard, I didn't know
you played the CELLO.
The Big Bang Theory Season 1, Episode 5
...ever to be stuffed
into his own CELLO case.
The Big Bang Theory Season 4, Episode 18
You mean my CELLO.
The Big Bang Theory Season 1, Episode 5
Are you cool
playing the CELLO?
The Big Bang Theory Season 7, Episode 6