Small things first...

So after a really long hiatus, here goes a very simple connect:

I think I have seen this SitCom!!

This sitcom is about four nerdy scientists who live next door to a beautiful blonde waitress. The characters are named Sheldon, Leo, Hovard, Raj and "Natasha", and the show is entitled, XXX. Each episode begins with a rapid-fire montage of images which takes us from the dawn of time to the present moment. Keeping with that theme, the montage is scored with what is probably the worst piece of recorded pop music since the dawn of time.

Easy question!!