http://www.pinknews.co.uk/2014/11/12/childrens-channel-cbbc-to-broadcast-film-about-transgender-boy/

There is also a Transvestite childrens TV series called Shezow.  A boy puts on a magic ring and transforms into a female superheroine.  Its a bit of a giggle, but goes a long way to show how peoples perceptions of gender are changing.

Alice