The city in Northern Ireland, near the border with the republic, is officially known as Londonderry by the UK Government – and a viewer complained that this term was the only correct answer.
In the show Pointless, contestants have to give an answer to a question or category which none of a previously surveyed 100 people have given.
In the broadcast in question, which was shown on BBC One on November 11 last year, contestants were asked to name a city in the UK without the letter A in the name.
The criteria which answers were judged against was “the updated list of cities with official city status published by the UK Government website at the end of August…