Ysgolion Dyffryn Nantlle a Llangefni'n ceisio cyrraedd yr wyth olaf. Ysgol Dyffryn Nantlle and Ysgol Llangefni compete to reach the quarter-finals of Radio Cymru's pop quiz.
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Ysgolion Dyffryn Nantlle a Llangefni'n ceisio cyrraedd yr wyth olaf. Ysgol Dyffryn Nantlle and Ysgol Llangefni compete to reach the quarter-finals of Radio Cymru's pop quiz.
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
