Maddie is at a shopping centre. She uses special cameras to find out how an escalator works to move people from one floor to another. Show more
Discover 11,128,835 listings and 279,903 playable programmes from the BBC
Maddie is at a shopping centre. She uses special cameras to find out how an escalator works to move people from one floor to another. Show more
The UK's most watched and most loved channel for the under-sixes, dedicated to delighting and surprising its pre-school audience.
