Gareth Delve, cyflwynydd cyntaf Cyw ar S4C, ssy'n dathlu deng mlwyddiant y gwasanaeth. Gareth Delve, the first presenter of Cyw on S4C, celebrates the service's tenth anniversary. Show more
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Gareth Delve, cyflwynydd cyntaf Cyw ar S4C, ssy'n dathlu deng mlwyddiant y gwasanaeth. Gareth Delve, the first presenter of Cyw on S4C, celebrates the service's tenth anniversary. Show more