One of the founding executives of Granada TV in the mid 1950s, he was responsible for giving the greenlight to shows such as Coronation Street and World in Action.
Forman, who also served as director of the British Film Institute and deputy chairman of the Royal Opera House, died on Sunday (February 24) at a nursing home in London, The Guardian reports.
ITV's director of television Peter Fincham paid tribute to Forman, describing him as "one of the great pioneers of British broadcasting".
He added: "He made a lasting contribution to quality drama and investigative journalism, being at the helm of Granada Television for the commissioning of Coronation Street.
"[He was] responsible for programmes such as World in Action, 7Up, Jewel in the Crown and Brideshead Revisited. He was a remarkable man and will be sadly missed."
Ray Fitzwalter, former editor and executive producer of World in Action,