Tryfan a Syr Hugh Owen yw'r ddwy ysgol olaf i gystadlu yn rownd agoriadol 2017. Ysgol Tryfan and Ysgol Syr Hugh Owen compete in the first round of Radio Cymru's annual pop quiz. Show more
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Tryfan a Syr Hugh Owen yw'r ddwy ysgol olaf i gystadlu yn rownd agoriadol 2017. Ysgol Tryfan and Ysgol Syr Hugh Owen compete in the first round of Radio Cymru's annual pop quiz. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
