He makes a VALID point!
The Big Bang Theory Season 8, Episode 3
That was a VALID hypo...?
What is happening to you?
The Big Bang Theory Season 1, Episode 1
You know, if this experiment is going to
be VALID, I suggest a neutral environment.
The Big Bang Theory Season 10, Episode 4
...where a tray of flatware
on a couch is VALID?
The Big Bang Theory Season 1, Episode 2
I think what you're feeling is VALID
and maybe later today...
The Big Bang Theory Season 1, Episode 2