As others have said, what you are saying makes no sense. The bit was exactly the same as the tv special version. Fozzie was being forgetful, not stupid. They aren't the same thing. Piggy was done EXACTLY like Frank performed her, if anything Eric did a much better job at singing with Piggy this time than ever before. I honestly think you just don't like Eric period are will always find fault with his work. Compare this version with the John Denver special version and you will see Piggy and Fozzie are exactly the same.