BBC One, ITV1, Channel Four and Channel Five were the final channels to cease transmitting on the frequency as the BBC's director general Mark Thompson and Arqiva CEO John Cresswell flicked the switch at Crystal Palace.
To mark Britain's march into the digital age, a light show will be held at the Crystal Palace transmitter, with celebrity guests including Sir David Attenborough and Professor Brian Cox.
An estimated 12 million homes in the London area alone are thought to have been affected by the analogue shut down, though a significant number of that figure have already made the jump to digital.
More than 23 million British homes have adopted digital, though Northern Ireland, Kent and the North East are yet to make the switch.
Television broadcasts have been transmitted from the Crystal Palace tower since 1956, two decades after regular TV transmissions began.