Ah, but you're all forgetting the original: Ivor the Engine (pronounced Ifor) - he had a particularly fine Welsh accent and puffed out little cotton wool puffs of steam while going 'shush-ti-ku, shush-ti-ku' as he went down the track. Bliss! Up there with The Clangers in the all time top ten of children's programmes.

Also, did I hear right that when Thomas the Tank Engine came to the US they changed the narrator? We had Ringo Starr (ex-Beatle), did you?