Programmes from the early days of S4C are to be held in the archives of the National Library in Aberystwyth.
The move aims to ensure the long term future of the collection from the S4C archives.
The mixture of films and programmes, including award winning shows from over the years will show the direction the channel has taken durings its history.
The libraries National Screen and Sound Archive of Wales holds a large collection of works which relate to Wales and the people of Wales. The channel praised the excellent work of the National Library staff, and displayed their total confidence in the organisation described as one of the worlds greatest libraries by entrusting them with the future of their works.
In order to preserve the collection for future generations not only do the archive staff have to catalogue, organise and properly store the materials, but they also have to handle them properly to ensure that original copies of film and television works are not damaged.