He recounts how he visited Sesame Street because he believed Oscar the Grouch would start the official countdown to Christmas .
In Elmo 's Christmas Countdown , Stiller the Elf ( Ben Stiller ) is telling Stan the snowball how Christmas was almost ruined .
Stan recounts how Stan visited Sesame Street because Stan believed Oscar the Grouch would start the official countdown to Christmas .
In Elmo 's Christmas Countdown , Stiller the Elf ( Ben Stiller ) is telling Stan the snowball how Christmas was almost ruined .