Almost 80 households in County Derry are still tuning in on black and white TVs, it has been revealed.
The figures were revealed as the 50th anniversary of colour TV is being celebrated this week.
TV Licensing has revealed that 78 households in County Derry are still watching TV programmes in monochrome, with 26 of those in Derry City itself.
There were 535 black and white TV licences in force in Northern Ireland at the end of September 2019, compared to 566 for the same period in 2018 (-31).
Four NI towns and cities feature in the top 20 list for black and white licences across the UK; Belfast placed at number seven with 79 monochrome licences, followed by Omagh in ninth place (71); Dungannon ranked sixteenth (47), while Newry placed eighteenth in the top 20 (39).
In Co. Derry, the highest concentrations of black and white licences were in Maghera and Magherafelt (31) and Derry City (26). A further 21 monochrome licences were in force between Coleraine, Portstewart and Limavady.
Across the UK the number of black and white licences has declined considerably over the years. There were 6,586 black and white TV licences in force at the end of September 2019 - a fall of 575 compared to the same time last year. In 2000 this figure stood at 212,000.
TV Licensing said the figures show that despite the rapid growth of smart TVs, smart phones and tablets to access TV content, a surprising number of households still appear to enjoy the nostalgia of monochrome TV sets. They remain popular with collectors with vintage and portable TV sets regularly traded online.
A licence is still needed to watch live TV and stream BBC programmes on iPlayer on a black and white TV or monitor and costs £52. But, if they are used to download BBC programmes on iPlayer or to record any live TV, then a colour TV Licence is needed.
Sinead Doyle, spokesperson for TV Licensing Northern Ireland, said: “When BBC One launched its colour TV service in November 1969, there were only three channels available. Fast forward to 2019, and more than half (53%) of TV households have in some way an internet connection to their TV and access to hundreds of channels.
“Whilst only accounting for a very small proportion it’s interesting to know that some households still like to watch their favourite shows on a black and white telly.”
BBC One launched its full colour service on 15 November 1969. The new service was also extended to ITV, bringing them in line with BBC Two, which had been offering colour programmes - including Wimbledon, the Olympic Games and The Eurovision Song Contest - since 1967 under controller, David Attenborough.
Programmes showing in colour on the 15th included Star Trek and Dixon of Dock Green, The Harry Secombe Show and Match of the Day, plus the feature film The Prisoner of Zenda.