Little snarky there,
Cello Lessons.
The Big Bang Theory Season 5, Episode 12
You mean my CELLO.
The Big Bang Theory Season 1, Episode 5
How do you meet girls playing the CELLO?
The Big Bang Theory Season 6, Episode 18
I never wanted to play the CELLO.
The Big Bang Theory Season 6, Episode 18
I guess he forgot that
I play the CELLO.
The Big Bang Theory Season 11, Episode 13