The BBC began regular public television broadcasting from a converted wing of Alexandra Palace in north London, transmitting to receivers within the greater London area. Two competing systems operated in adjacent studios: the Baird Company's 240-line intermediate film process and Marconi-EMI's 405-line electronic system. A coin toss gave Baird the opening broadcast. Opening-day programming included variety performances by Adele Dixon. After a trial period, the BBC adopted the Marconi-EMI system exclusively in February 1937.