I Told Them It Was Funny

My favourite joke is;

Knock Knock
                       Who's There?
Banana?
                       Banana Who?
Sorry, I can't hear you I have a banana in my ear!

Mummy and Daddy say that I learnt it from a Dora The Explorer episode, but they also say it isn't funny so I don't believe them. And when I was looking for a present for Daddy's birthday at his favourite online T-Shirt shop I found this;

See I told them it was funny.