Dilynwch Huw Evans i gorneli tywyllaf archif Radio Cymru, i ddarganfod Sesiynau Coll o ddyddiau cynharaf yr orsaf. Lost sessions from Radio Cymru's early days.
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Dilynwch Huw Evans i gorneli tywyllaf archif Radio Cymru, i ddarganfod Sesiynau Coll o ddyddiau cynharaf yr orsaf. Lost sessions from Radio Cymru's early days.
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
