There are around 250,000 items in the ITV Wales archive.
The entire archive - comprising of film, tape and other formats - is now housed at the National Library of Wales in Aberystwyth.
The footage is being digitised by experts at the library, as part of a major project to preserve the archive for the nation for decades to come.
A new YouTube channel launches today to showcase some of the material.
In 1963 the small hamlet of Pwlldu was demolished but despite its dilapidated state and no running water not everyone wanted to leave.
In 1972 the first Welsh 'hypermarket' opened - the Carrefour in Caerphilly.
Watch a Welsh regiment take part in a leek eating ceremony in 1973.