I have had my PVR 9300T for quite some years and it has worked well. Over the past two years it has been jumping quite badly. Other followers of this forum say theirs jumps on certain programmes, and I can add to that. Mine also jumps on one-off programmes such as dramas being The Looming Tower, Eve and a lot of other programmes. There is no rhyme or reason as to which station or programme it jumps through. The Planets series was another where it jumped badly. I could not watch the series in the end as it jumped so much. However, it never jumps during Coronation Street!