Knowing the name, I was able to find some youtube clips. Looks like someone put a whole episode up there too.
Intro:
No Benji, it's too dangerous!
Looks like the aliens had spacy clothes after all. Funny, I remembered it as two men in black bussiness suits. Must have had it mixed up with a movie. This is
exactly the kind of show where you're not sure if you imagined it or not.