
I think what you're feeling is VALID
and maybe later today...
The Big Bang Theory Season 1, Episode 2

That was a VALID hypo...?
What is happening to you?
The Big Bang Theory Season 1, Episode 1

Assuming that's a VALID reason not to go,
which it isn't...
The Big Bang Theory Season 2, Episode 23

He makes a VALID point!
The Big Bang Theory Season 8, Episode 3

It was sparsely sourced,
but I think the science is VALID.
The Big Bang Theory Season 1, Episode 3