13:00Y Talwrn201728/12/2017BBC Radio Cymru Duration: 25 o funudau Thu 28th Dec 2017, 13:00 on BBC Radio CymruMwy o uchafbwyntiau cyfres 2017. More highlights from the 2017 series. Show more GenresFactualArts, Culture & the MediaFormatsPerformances & EventsBrandY TalwrnSeriesY Talwrn: 2017 Source: BBC Online