It was made 73 years ago - and unlike modern gadgets it was built to last.
A television that was around for King George VI's 1937 Coronation and survived the Blitz has today been unveiled as Britain's oldest working set.
The black-and-white Marconiphone 702 dates back to 1936 and is still in its original condition.
It has a 12-inch screen and is estimated to have been manufactured around November 1936, the same month as the BBC television service from Alexandra Palace was first broadcast.
The set is likely to have screened landmark occasions including George VI's Coronation Procession, the 1948 London Olympic Games and the Queen's Coronation in 1953. When new, it cost 60 Guineas - the equivalent of around £11,000 today.
The only addition is a conspicuous set-top box which has converted the set from analogue to digital, bringing the device firmly into the 21st century.
Jeffrey Borinsky, a consultant engineer from North London, entered a competition to find the country's oldest TV.
He has owned the set for ten years. He said: 'I still enjoy watching my Marconiphone occasionally, especially cartoons from the 1930s, which the original owner might also have seen on the set.
'And converting the set to digital means I can continue to watch it for many years to come.'
Iain Logie Baird, television curator at the National Media Museum in Bradford and grandson of the inventor of TV, John Logie Baird, set up the competition.
He said: 'A small fraction of pre-War tellies still exist - many fell into disrepair or were simply thrown out when a newer set arrived, and we know about 3,000 were lost in the London bombings.'
The set will join a display of televisions from across the ages at the National Media Museum.