Gyda Radio Cymru'n 40 oed, dyma sgetsus a chaneuon cyfredol gan Dyfan Roberts a Valmai Jones. Dyfan Roberts and Valmai Jones return for Radio Cymru's 40th anniversary.
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Gyda Radio Cymru'n 40 oed, dyma sgetsus a chaneuon cyfredol gan Dyfan Roberts a Valmai Jones. Dyfan Roberts and Valmai Jones return for Radio Cymru's 40th anniversary.
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
