| No | Programme Title | Transmission Date and Time | Company | Thousands of Viewers |
|---|---|---|---|---|
| 1 | CLWB RYGBI (GWEILCH v LEINSTER) | Saturday (19:15) | BBC Cymru | 76 |
| 2 | POBOL Y CWM | Thursday (19:30) and Sunday (13:00) | BBC Cymru | 46 |
| 3 | POBOL Y CWM | Wednesday (20:00) and Sunday (12:40) | BBC Cymru | 43 |
| 4 | POBOL Y CWM | Tuesday (19:30) and Sunday (12:20) | BBC Cymru | 36 |
| 5 | CODI HWYL | Friday (20:25), Saturday (14:30) and Wednesday W13 (22:00) | Rondo | 35 |
| 6 | CEFN GWLAD | Tuesday (20:00), Wednesday (12:30) and Saturday (13:30) | ITV Cymru | 33 |
| 7 | POBOL Y CWM | Monday (20:00) and Sunday (12:00) | BBC Cymru | 31 |
| = | POBOL Y CWM | Friday (20:00) and Sunday (13:25) | BBC Cymru | 31 |
| 9 | HENO | Thursday (19:00) | Tinopolis | 28 |
| 10 | CWPAN CHINA (CHINA v CYMRU) | Thursday (18:05) | BBC Cymru | 27 |
| 11 | FFERMIO | Monday (21:30), Saturday (13:00) and Sunday (18:15) | Telesgop | 25 |
| 12 | NEWYDDION 9 | Thursday (21:00) | BBC Cymru | 24 |
| 13 | NEWYDDION 9 | Tuesday (21:00) | BBC Cymru | 23 |
| = | ROWND A ROWND | Tuesday (18:30) and Sunday (10:45) | Rondo | 23 |
| = | NEWYDDION 9 | Wednesday (21:00) | BBC Cymru | 23 |
| = | BAND CYMRU 2018 | Sunday (20:00), Tuesday W13 (22:00) and Friday W13 (12:30) | Rondo | 23 |
| 17 | DECHRAU CANU DECHRAU CANMOL | Sunday (19:30) | Rondo | 22 |
| 18 | RYGBI PAWB (CYMRU DAN 18 v LLOEGR DAN 18) | Sunday (16:05) | Lens 360 Limited | 21 |
| = | AR WERTH | Wednesday (21:30) | Boom Cymru TV | 21 |
| 20 | NEWYDDION 9 | Monday (21:00) | BBC Cymru | 20 |
