![It was sparsely sourced,
but I think the science is valid.
It was sparsely sourced,
but I think the science is valid.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
It was sparsely sourced,
but I think the science is VALID.
The Big Bang Theory Season 1, Episode 3
![You know, if this experiment is going to
be valid, I suggest a neutral environment.
You know, if this experiment is going to
be valid, I suggest a neutral environment.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
You know, if this experiment is going to
be VALID, I suggest a neutral environment.
The Big Bang Theory Season 10, Episode 4
![No, it was a valid hypothesis.
No, it was a valid hypothesis.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
No, it was a VALID hypothesis.
The Big Bang Theory Season 1, Episode 1
![...scientifically valid protocol
that will make our lives better?
...scientifically valid protocol
that will make our lives better?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...scientifically VALID protocol
that will make our lives better?
The Big Bang Theory Season 3, Episode 3
![He makes a valid point!
He makes a valid point!](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
He makes a VALID point!
The Big Bang Theory Season 8, Episode 3