Originally an actress—she had a bit part in the second episode of The Quatermass Experiment in 1953—Richman was appointed as a script editor of single plays at ATV by Lew Grade in 1960.
According to Frederic Raphael, "Richman proved, by her demanding eclecticism, that quality was not the enemy of popularity.
Moving to Associated Rediffusion around 1964, she became their Head of Series, and created a genre which critic Philip Purser termed 'Our Story'.
The series featured works by Leon Griffiths, Roy Minton, Alun Owen, Dennis Potter (Shaggy Dog), and C. P.
Reportedly sacked by Rupert Murdoch,[7] then in effective control of the company, she went independent, renewing an association with David Frost,[5] and was responsible for projects such as Jennie: Lady Randolph Churchill (1974) starring Lee Remick.