Could "The Big Bang Theory" use Urkel 2 spice up the show?

I'm watching this show, & I have 2 say that those nerds r kinda boring 2 watch. Maybe they could use Steve Urkel on the show, even if his shtick can get tiresome after one season & may require the fat guy from "Die Hard" as a foil. & @ least Urkel seems 2 b more charismatic then those Big Bang guys. But that's just me; I don't watch the show regularly. What do u think? (Don't 4get; "Family Matters" was on CBS in it's final seasons).