Sesame Street

Sesame Street was a television programme. It once swapped its scripts with Doctor Who by mistake. This led to Kermit, Big Bird, Bert, Ernie, and Oscar the Grouch all playing Daleks, carry eyestalks and hunting down the Seventh Doctor and Ace. Meanwhile, the Doctor told Ace that they would be looking at the letter "A" and the number "6". She replied by telling him "A is for Ace". (NOTVALID: Doctor Who? 225)