In 1922 Lewis was one of the five young founding executives of the British Broadcasting Company, precursor of the British Broadcasting Corporation, where he was a writer, producer and director. The other four were John Reith, Arthur Burrows, Stanton Jefferies and Peter Eckersley. In 1931, he co-wrote and directed a short film adaptation of the George Bernard Shaw play "How He Lied to Her Husband". In late 1936 – early 1937 he was a producer and presenter for the infant BBC Television Service at Alexandra Palace. At the 1938 Academy Awards ceremony, Lewis, Shaw, Ian Dalrymple and W. P. Lipscomb were awarded Oscars for their screen adaptation of "Pygmalion".