Philip Hinchcliffe was a producer who took over from Barry Letts at the start of Tom Baker's era and presided over the First Golden Age together with script editor Robert Holmes until he was banned from Doctor Who for killing Mary Whitehouse.
Hinchcliffe/Holmes era Edit
The show became darker and more adult with a gothic atmosphere influenced by Hammer horror films. The horror influence is obvious in stories like Planet of Evil, Pyramids of Mars, The Brain of Morbius, The Hand of Fear and The Talons of Weng-Chiang, all of which
rip off "pay homage" to well known horror novels and movies.
Out with the old Edit
Hinchcliffe didn't want to use characters and monsters from the series' past (the Daleks, Cybermen and Sontarans only appeared once during his era, and those stories were already commissioned by Barry Letts). The Master and the Time Lords returned for The Deadly Assassin, but only at the suggestion of Bob Holmes (and they were portrayed very differently from their previous appearances). The Brigadier and UNIT were written out of the series.
Secret to his success Edit
A taste for horror, Tom Baker, Sarah Jane, a scantily-clad Leela, no Adric - but mostly Bob Holmes as his script editor. Hinchcliffe admits he frequently chucked out other writer's scripts and always managed to talk Bob Holmes into doing a complete rewrite from scratch.
Phil and Derrick Sherwin are the only producers of the classic series still alive.