Mae Radio Cymru'n ymuno â'r BBC World Service dros nos. Radio Cymru joins the BBC World Service overnight.
Discover 11,128,835 listings and 280,506 playable programmes from the BBC
Mae Radio Cymru'n ymuno â'r BBC World Service dros nos. Radio Cymru joins the BBC World Service overnight.
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
