Well, I DID mention the Mars Rover
incident to that FBI agent...
The Big Bang Theory Season 4, Episode 7
Who DID you see
at the barbecue festival?
The Big Bang Theory Season 11, Episode 13
HOW DID he die?
Game of Thrones Season 6, Episode 2
- Yeah. How DID you know?
- Heard it at the mall with my girlfriends...
The Big Bang Theory Season 4, Episode 22
Did you at least have
a good flight down there?
The Big Bang Theory Season 10, Episode 12