...DISCOVER our weaknesses,
and report back to your alien overlords.
The Big Bang Theory Season 3, Episode 15
Going out to DISCOVER electricity?
The Big Bang Theory Season 3, Episode 6
But you didn't DISCOVER him.
You merely noticed he was here...
The Big Bang Theory Season 2, Episode 4
only to emerge
and DISCOVER his apartment
The Big Bang Theory Season 5, Episode 12
I'm not sure, but I think I'm about
to DISCOVER how the banana felt.
The Big Bang Theory Season 1, Episode 5