Catrin Beard sy'n chwilio am y cystadleuydd mwyaf gwybodus mewn cwis di-lol. Catrin Beard searches for the most knowledgeable contestant in this no-nonsense quiz. Show more
Discover 11,128,835 listings and 277,859 playable programmes from the BBC
Catrin Beard sy'n chwilio am y cystadleuydd mwyaf gwybodus mewn cwis di-lol. Catrin Beard searches for the most knowledgeable contestant in this no-nonsense quiz. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
