Many of the cast found themselves puzzling over their characters' plot lines, only to discover what they felt was "right" in Winston Graham's original novels, seemingly ignored by the scriptwriters. Richard Morant elected to leave after the first series as a result, and his part was rewritten and recast with Michael Cadman. This was wryly reflected on-screen in the line: "I'm not the same man who went away."
Robin Ellis and Angharad Rees were lined up to reprise their characters in the attempt to reboot Poldark (1996), but producers HTV reneged on their promises and recast the parts, much to the disappointment of long-term fans who actually staged a physical protest against the decision.
The series attracted up to 15 million viewers in the UK, at a time when there were only three television channels and no home computers.
Scriptwriter Martin Worth was dispatched by the BBC to contact Winston Graham once his published plots had been exhausted, in order to brainstorm new ones. Graham (who had already argued with the production team) refused, and so the series was abruptly brought to an end. Graham later continued the story in books.
Studio scenes were rehearsed for six days before being recorded over two days in the studio between 19:30 and 22:00 in the evening.