John Roberts a'i westeion yn trafod gwaith a dylanwad Billy Graham. John Roberts and guests remember Billy Graham. Show more
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John Roberts a'i westeion yn trafod gwaith a dylanwad Billy Graham. John Roberts and guests remember Billy Graham. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
