I'm from Israel, and we used to get the show for a while, and then we stopped getting it. It's been years since I've seen an episode.
Anyway, there was one episode I remember this one bit of that really amused me... I don't remember what lead up to this, but Bill (I think it was) was talking to someone (Dave?) on the phone, and said something along the lines of "Are you undermining my constitutional right to have telephonic conversations in the nude?" and later stepped out of somewhere in his underwear.
So, my question is, what was it he said, exactly, and which episode was this?

I am not sure what that episode or what the exact quote is but I know a web page that has some Newsradio qutoes and it might have the one you are looking for or maybe another one that you'd like its at http://us.imdb.com/Quotes?0112095

No, I've read those thoroughly before coming here.
Thatnks for the reply, though.

I believe that the episode name was either "4:20", or "Jackass Junior High"...I don't know exatly what Bill says, but what you said was pretty close I think...

It's from 4:20.

"Are you challenging my constitutional right to make nude phone calls?"

Much obliged.