
You know what?
That's not a flag question, next CALLER.
The Big Bang Theory Season 9, Episode 15

All right, we have our next CALLER.
The Big Bang Theory Season 10, Episode 21

It's time for a very special guest CALLER.
The Big Bang Theory Season 8, Episode 20

Need the location of an incoming CALLER.
Breaking Bad Season 5, Episode 14

...suggesting that he has
no personal relationship with the CALLER.
The Big Bang Theory Season 2, Episode 15