HTV Wales' children's programme Miri Mawr became a cult show in the Seventies.
The characters, Miss Blodyn Tatws, Llewelyn, Caleb, Dan Dwr and Dyn Creu were household names.
You can watch clips from the show on our YouTube archive channel.
Our archive team have been working hard to upload more classic videos to the web.
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.