New figures show that there are now just 11 TV watchers in Hemel Hempstead who tune in on a black and white set.
That figure compares to 17 in St Albans, 15 in Watford, eight in Borehamwood, eight in Stevenage and seven in Welwyn Garden City.
TV Licensing says there has been a 12 per cent drop in the use of of black and white TVs in the UK. Just 11,500 are registered with the authority throughout the nation.
With advances in technology, the demand for black and white licences has been in steady decline for years.
At the turn of the millennium there were 212,000 black and white licences issued, but by 2003 that number had shrunk to 93,000.
Just three years later, in 2006, the number was less than 50,000 and today just 11,550 black and white licences remain in force across the UK.
TV Licensing spokesman Emma Cowlard said: “We may be on the brink of losing black and white sets to the history books.
“But older technology will always be replaced by exciting new ways of watching live.”
Everyone who watches live TV must pay for a TV licence.
> Are you the owner of one of the last black and white TVs in Hemel Hempstead, or do you know someone who is? Give us a ring on 07803 505589.