Viewing of BBC and ITV’s Welsh programmes accounts for just 4% of total TV viewing time, with viewing heavily skewed towards the over-65s.
Dim ond 4% o gyfanswm yr amser gwylio teledu yw gwylio rhaglenni Cymreig y BBC ac ITV, gyda’r gwylio’n gogwyddo’n drwm tuag at y rheini dros 65 oed.