You know, if this experiment is going to
be VALID, I suggest a neutral environment.
The Big Bang Theory Season 10, Episode 4
That was a VALID hypo...?
What is happening to you?
The Big Bang Theory Season 1, Episode 1
It was sparsely sourced,
but I think the science is VALID.
The Big Bang Theory Season 1, Episode 3
That is a VALID point.
The Big Bang Theory Season 10, Episode 19
That is not a VALID order.
Game of Thrones Season 6, Episode 8