LOL, I believed he was talking about Dexter's Laboratory too XD No, This is indeed the serie Dexter. Some friends of mines gave me this advice to watch this.
I always thought of dexter in comparsion to the cartoon. Only instead of deedee he had debra and instead of having a laboratory with inventions he had a box full of blood slides and a hefty list of victims.
That's just Dexter's Laboratory .... for adults. Or can I say Dexter's Laboratory was the alpha version of the Dexter serie ?