Broadcasting a violin recital with sound and vision. Two television cameras record the performer from different angles. The microphone is suspended to obtain the sound recording. Special tests of reception of B.B.C from Alexandra Palace of synchronised television and speech were held at Olympia by a committe of the Radio Manufacturers' Association. On alternate days transmissions from Alexandra Palace were given by Baird and Marconi E.M.I systems. In 1935 the B.B.C experimented with John Logie Baird's television system and Marconi's E.M.I system. The E.M.I succeeded Baird's in 1937.