Delfont was instrumental in bringing Morecambe & Wise to ITV in their first successful TV show, Two of a Kind (1961 to 1968). He also helped the careers of Tommy Steele, Danny La Rue, Norman Wisdom and Tommy Cooper. By the 1960s, the brothers were all very successful and were said to have a "Gradopoly" over British popular entertainment, with Delfont the country's leading impresario; Leslie running the UK's biggest talent agency and Lew one of the major players in British commercial television. In 1967, the Grade Organisation was acquired by EMI for $21 million and Delfont and his brothers joined the EMI board. When Leslie fell ill, Delfont was asked to help out at the Grade Organisation. As part of the deal, he became the largest individual shareholder in EMI. In 1969 he became chief executive of Associated British Picture Corporation after it was acquired by EMI and was a board member for around 30 entertainment entities, including the Blackpool Tower Company. In 1970, Delfont sold his own Bernard Delfont Organisation to EMI for $192,000, which increased his future shareholding in EMI to a value of around $8 million. As head of EMI's leisure division, Delfont oversaw film production, including The Go-Between (1971), Murder on the Orient Express (1974), Death on the Nile and The Deer Hunter (both 1978). In that role he withdrew funding for the film Life of Brian in 1978 at the last moment owing to worries over the religious implications of the screenplay. He later became Chief Executive of EMI in 1979. In 1980, following the sale of EMI's leisure interests to Trust House Forte, he became chief executive of THF Leisure Division. In 1983, he headed a management buyout under First Leisure Corporation where he was chairman until 1988 and then president. In Blackpool, First Leisure owned all three of its piers (South Pier, Central Pier and North Pier). He was an active supporter of the Variety Club of Great Britain and was a former president. He presented the annual Royal Variety Performance from 1958 to 1978, and saw its first television broadcast in 1960, which became a ratings hit. He was also involved in other entertainment charities being life president of the Entertainment Artistes' Benevolent Fund and president of the Entertainment Charities Fund from 1983 to 1991. Delfont married the actress Carole Lynne in 1946. They had one son (David) and two daughters