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