
helping to build a PROTOTYPE
for a high-tech guidance system.
The Big Bang Theory Season 9, Episode 19

...a working PROTOTYPE of the Mars Rover.
The Big Bang Theory Season 8, Episode 3

and took our PROTOTYPE and all of our
research and didn't even tell us?
The Big Bang Theory Season 10, Episode 23

I need to rub my genitals
on their PROTOTYPE.
The Big Bang Theory Season 9, Episode 19

we've put a lot of thought and effort
into this current PROTOTYPE.
The Big Bang Theory Season 10, Episode 23