I remember when Johnny Cash sang Nasty Dan with him and he really liked and said, "Wow!... that was really great and say aren't you Johnny Trash?"
Johnny Cash closes Oscar's trash can and says, "HAVE A ROTTEN DAY".
That grouch space ship episode is correct and it's funny when Telly sneaks aboard! There is also another episode where someone lands a big ship on sesame street and oscar joins him for a tour of space. It was another grouch.
The best moment of Oscar the Grouch is when he MUST help Luis fix two things. Mr. Hooper & David LOCKED THERE KEYS TO THE STORE IN THE STORE, so they go and stay at oscars trash can. THEN A WATER PIPE BURST IN SUSAN & GORDONS APARTMENT, so they stay with Oscar. Oscar has no choice but to cooperate with Luis and fix the water pipe and the door locks at the store. He wanted to get everyone out of his trash can!
There was another episode when everyone had dinner at Susan & Gordons apartment and Oscar was there. He had mash potatos, peas, and Gravy mushed on top of meatloaf or what ever meat it was. He even had sardeans.
YUCK!