An exception was Requiescant pro defunctis, a string quartet composed as Josephs' personal response to newsreel footage of Auschwitz shown at the time of the Adolf Eichmann trial.
Josephs is best remembered for composing the music for the television series The Great War (1964), Horizon (BBC TV series) 1964', "WPIX Chiller Theatre", 1965 Theatre 625 (1965), Talking to a Stranger (1966), Weavers Green (1966), W. Somerset Maugham (1969), Cider with Rosie (1971), The Guardians (1971) I, Claudius (1976), Disraeli (1978), The Ghosts of Motley Hall (1976), Enemy at the Door (1978), The Voyage of Charles Darwin (1978), Pride and Prejudice (1980), The Brief (1984) and The Return of the Antelope (1986), as well as incidental music for The Prisoner (1967).
His film scores include Cash on Demand (1961), Two Letter Alibi (1962), Fanatic (1965), The Deadly Bees (1966), Hostile Witness (1968), My Side of the Mountain (1969), Cry of the Banshee (1970), Dark Places (1973), Callan (1974), Swallows and Amazons (1974), All Creatures Great and Small (1975), The Uncanny (1977), Martin's Day (1985) and Mata Hari (1985).
In 1966, under the pseudonym Wilfred Wylam, Josephs composed the score for Man of Magic, a musical based on the life of magician Harry Houdini, with book by John Morley and Aubrey Cash.
Produced by impresario Harold Fielding, the show opened at the Manchester Opera House on 22 October[4] before transferring to the Piccadilly Theatre in London where it ran for 135 performances.