Zoe Ball and Rick Edwards get the party started for the celebration of 50 years of Doctor Who, with Doctors and companions past and present, celebrity fans and special surprises.
Hacker's Birthday Bash: 30 Years of Children's BBC
02015HD
It's 30 years since CBBC started airing short links between shows. To celebrate, Hacker has brought together the finest presenters, past, present and even a new one, to reminisce and laugh at a few bloopers.
