00:00Gweler BBC Radio 5 live20/12/2012BBC Radio Cymru Duration: 5 awr, 31 o funudau Thu 20th Dec 2012, 00:00 on BBC Radio CymruGweler BBC Radio 5 live. Radio Cymru joins BBC Radio 5 live.GenresFactualBrandGweler BBC Radio 5 live Source: BBC Online