Yng nghanol dathliadau pen-blwydd Radio Cymru, dyma gyfle i nodi chwarter canrif o Ar y Marc. Dylan Jones and guests mark 25 years of Radio Cymru's football magazine programme. Show more
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Yng nghanol dathliadau pen-blwydd Radio Cymru, dyma gyfle i nodi chwarter canrif o Ar y Marc. Dylan Jones and guests mark 25 years of Radio Cymru's football magazine programme. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
