![It's time for a very special guest caller.
It's time for a very special guest caller.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
It's time for a very special guest CALLER.
The Big Bang Theory Season 8, Episode 20
![We have another caller.
Hi, you're on Fun with Flags.
We have another caller.
Hi, you're on Fun with Flags.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
We have another CALLER.
Hi, you're on Fun with Flags.
The Big Bang Theory Season 9, Episode 15
![Unknown caller.
It's got to be them.
Unknown caller.
It's got to be them.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Unknown CALLER.
It's got to be them.
The Big Bang Theory Season 12, Episode 23
![...suggesting that he has
no personal relationship with the caller.
...suggesting that he has
no personal relationship with the caller.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...suggesting that he has
no personal relationship with the CALLER.
The Big Bang Theory Season 2, Episode 15
![...there is a gentleman caller
bringing flowers to your fiancée as we speak.
...there is a gentleman caller
bringing flowers to your fiancée as we speak.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...there is a gentleman CALLER
bringing flowers to your fiancée as we speak.
The Big Bang Theory Season 8, Episode 7