First broadcast: on BBC Radio CymruLatest broadcast: on BBC Radio Cymru
Cyfres yn olrain hanes y plant sydd yn gorfod ymweld â'n ysbytai mwyaf ar drothwy y Nadolig. We follow children visiting hospitals over the festive period.
This data is drawn from the data stream that informs BBC's iPlayer and Sounds. The information shows what was scheduled to be broadcast, meaning it was/is subject to change and may not be accurate. More