Mr Tumble cheers up children at Alder Hey Hospital

CBeebies TV star Mr Tumble was a surprise guest at a special day of activities at Alder Hey Children's Hospital designed to cheer up poorly youngsters.

Hacker T Dog, CBeebies own Melody and identical twin doctors Chris and Xand Van Tulleken who present CBBC's Operation Ouch also joined in the event called Hospital Heroes.