Complex sentence: During the late'50s and early' 60s Crowther worked on the Stage and radio some of his radio worked include Ovaltine radio programmes, Variety playhouse and Crowther's Crowd.
Split into simpler sentences: During the late'50s and early' 60s Crowther worked on the stage and radio. His radio work included Ovaltine programmes, Variety playhouse and Crowther's Crowd.