This could get messy. According to The Independent, Sherlock producers are prepared to take legal action against CBS TV’s planned modern day Holmes drama, Elementary.

Executive Producer Sue Vertue told the tabloid: “We understand that CBS are doing their own version of an updated Sherlock Holmes. It’s interesting, as they approached us a while back about remaking our show.

“At the time, they made great assurances about their integrity, so we have to assume that their modernised Sherlock Holmes doesn’t resemble ours in any way, as that would be extremely worrying.”

She added: “We are very proud of our show and like any proud parent, will protect the interest and wellbeing of our offspring.”

A legal specialist gave her opinion on whether there is a case to be made: “The concept of a new Sherlock Holmes is unprotectable. But if the unusual elements of the BBC series – the modern settings, characters, clothes, plots and distinctive visual style – were closely reproduced in the CBS version, that could form the basis of a potential copyright claim.”