Catrin Beard sy'n cyflwyno rownd derfynol cwis di-lol Radio Cymru. Pwy fydd pencampwr Pen Ben 2018? Catrin Beard presents Radio Cymru's no-nonsense quiz. Show more
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Catrin Beard sy'n cyflwyno rownd derfynol cwis di-lol Radio Cymru. Pwy fydd pencampwr Pen Ben 2018? Catrin Beard presents Radio Cymru's no-nonsense quiz. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
