Blue Peter is a British children's television entertainment programme created by John Hunter Blair. It is the longest-running children's TV show in the world, having been broadcast since October 1958. It was broadcast primarily from BBC Television Centre in London until September 2011, when the programme moved to dock10 studios at MediaCityUK in Salford, Greater Manchester. It is currently shown live on the CBBC television channel on Fridays at 5p.m. The show is also repeated on Saturdays at 11:30a.m., Sundays at 9:00a.m. and a BSL version is shown on Tuesdays at 2:00p.m.