I think it was the episode with Cindy Crawford with the sketch of her, Kermit, and a bunch of muppet kids, who are part of somethink like the Mickey Mouse club. The kids stand in a line, jump forward, and say their name.
Kermit: Woah! You were just up three times.
Stu: Was I? I have short term memory loss...Stu!
The episode with Prince where he tries to get past the bear:
Prince: I don't have a name.
Bear: Well, I can't let you in without a name.
Prince: I don't have a name. I have a symbol. (Shows his symbol)
Bear: That's a picture of my mother! Give me that!
Prince: I'm the guest tonight.
Bear: No, our guest tonight is Prince.
Prince: Well, that's me.
Bear: I thought you didn't have a name.
Prince: I don't. I'm the Artist Formally Known as Prince.
Bear: Yeah? And I'm the bear currently known as not amused.
And one of my all time favourites was when a guest failed to show up, and the bear goes into the street to find a new guest. He's asking people for help, and Jay Leno walks up.
Jay: Hey, I heard you need a guest for your show tonight.
Bear: Oh! Hey, thanks buddy! You take that side of the street and start asking people.
Jay: What? No, I meant me.
Bear: Who are you?
Jay: I'm Jay Leno. I have a talk show. You know the Tonight Show?
Bear: Sorry pal, never heard of you.
After some arguing, Kevin Eubanks walks by.
Bear: Oh my gosh, it's Kevin Eubanks! Kevin?
Bear: I'm a huge fan. I watch your show all the time!
(Jay Leno stands astounded)
Bear: Will you host our show tonight?
Jay: His show? That's my show.
Bear: Get lost buddy.
theshadow908 mentioned the Prince episode which has the hilarious exchange with Bobo at the reception desk. Where Prince produces a card with his symbol and Bobo responds as if he were taking one of those Rorschach tests (ink blot tests) by saying "I see my mother dancing naked on an orange."
Later as the episode goes on and more Prince symbols are shown, Bobo says "Hey, how many pictures of my mother are out there?"
I like the Sandra Bullock episode the best, though.
I am serious, and don't call me Shirley.
My favorite episode had to be Cindy Crawford..and the mouseketeer send off. I forgot all about that Stu guy..LOL
Sal fell in love with Johnny..that was too funny also. Sal was always following Johnny around.."Hey Johnny..I picked you some nice flowers!"
Remembered that part as soon as I read this "stu" hilarious
"I flirt with suicide, sometimes kill the pain" Jonathan Davis of Korn