
Just out of CURIOSITY, why didn't you
ask Leonard for advice about this?
The Big Bang Theory Season 8, Episode 21

Where is the CURIOSITY?
The Big Bang Theory Season 4, Episode 21

But, out of CURIOSITY,
what is a way?
The Big Bang Theory Season 5, Episode 10

Just out of CURIOSITY,
which one of you figured it out?
The Big Bang Theory Season 11, Episode 12

It's got my bottomless
intellectual CURIOSITY
The Big Bang Theory Season 12, Episode 9