Is this about the PROBE
he's working on without you?
The Big Bang Theory Season 8, Episode 21
- The space PROBE.
- Good.
The Big Bang Theory Season 8, Episode 6
So, when the aliens brought you back,
they just left the PROBE in?
The Big Bang Theory Season 9, Episode 23
Voyager the space PROBE,
or Voyager the Star Trek TV show?
The Big Bang Theory Season 8, Episode 6
And, of course, it's Gravity Probe B.
The Big Bang Theory Season 1, Episode 13