Rheinallt Hughes o Lanarmon Dyffryn Ceiriog sy'n ceisio adnabod sŵn y peiriant. Rheinallt Hughes from Llanarmon Dyffryn Ceiriog tries to guess the noise of the machine. Show more
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Rheinallt Hughes o Lanarmon Dyffryn Ceiriog sy'n ceisio adnabod sŵn y peiriant. Rheinallt Hughes from Llanarmon Dyffryn Ceiriog tries to guess the noise of the machine. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
