Episode details
Radio Cymru,4 mins
Available for over a year
Darganfod sut ma' trydan yn cyrraedd ein cartrefi a pha mor beryglus mae`n gallu bod.
Programme WebsiteUse BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.
Radio Cymru,4 mins
Available for over a year
Darganfod sut ma' trydan yn cyrraedd ein cartrefi a pha mor beryglus mae`n gallu bod.
Programme Website