Blue Peter is the world's longest-running children's television show, having first aired in 1958. It is shown on CBBC, both in its BBC One programming block and on the CBBC Channel. During its history there have been many presenters, often consisting of two women and two men at a time. This allows the programme to relate to both sexes. The show uses a studio for the main format of the presenting; however, there is also a garden, often referred to as 'The Blue Peter Garden', that is used during the summer months or used when they are showing any outside activities. The current presenters as of 2010 are, Andy Akinwolere, Helen Skelton and Joel Defries (soon to be replaced by Barney Harwood).