A recent study of two centuries of data by sociologists at Cardiff and Southampton found that while British society is in simple terms twice as mobile as it was 100 years ago, 'it is likely to take another 200-250 years before there is no association between fathers' and sons' occupational and social positions'.
Rydw i wedi derbyn cynnig Hen Rech Flin i ddechrau trafodaeth am hyn i ffwrdd o'r edefyn hwyliog o'r seiat Ffilmau, Radio a Theledu.
Gyda'r nifer fawr o enghreifftiau o gysylltiadau teuluol o fewn diwydiant fel y cyfryngau yng Nghymru a gafodd ei gynnig yn yr edefyn yna, fuasech chi'n dweud fod nepotistiaeth yn rhemp yng Nghymru ac ydy o'n gwneud mwy o ddrwg na da i'n cymdeithas?