Numb3rs, Season One

Alan Eppes:
Well, it seems like your new math consultant is working out nicely.

Don Eppes:
I gotta tell you, dad, I can't think of anyone who could have helped us the way Charlie did in this investigation.

Alan Eppes:
You just remember how Charlie is. Can't seem to quit a problem. He's still working on the same one he's had since grade school.

Don Eppes:
And what's that?

Alan Eppes:
Trying to impress his big brother.