
clearly you've never
seen me play the CELLO.
The Big Bang Theory Season 7, Episode 6

How do you meet girls playing the CELLO?
The Big Bang Theory Season 6, Episode 18

...ever to be stuffed
into his own CELLO case.
The Big Bang Theory Season 4, Episode 18

Little snarky there,
Cello Lessons.
The Big Bang Theory Season 5, Episode 12

Leonard, I didn't know
you played the CELLO.
The Big Bang Theory Season 1, Episode 5