The show aims to get one million children to try out new things; literally to "do something different", also referred in the programme as 'DSD-ing'.

The idea of the show is to get one million children to do something that they haven't previously tried, by the end of summer 2007.

Ideas suggested by the presenters have been incredibly diverse and have included cooking a Spanish Omelette, learning to DJ, taking up a new sport, learning the ukulele, and (somewhat tongue-in cheek) the suggestion to "cross breed some lions and puffins" to make 'luffins'.

The 'first run' of the series was transmitted during the UK schools' Easter holidays on BBC Two, as well as on the CBBC Channel.

The 'second run' of the show began transmission during the UK schools' summer holidays, in the same timeslot.

Each of the Easter and Summer shows contained different 'strands' - Each episode was recorded in a different location within the UK.

Each child who registers on the website adds to the growing total, with the ultimate goal of reaching one million DSDs.