I'm sure this is a familiar thread but if anyone could just point me in the right direction, I'd be grateful. I don't want a step by step guide, just a 'well the reason is because', ta TV via the HTPC is, compared to my freeview receiver, a bit on the jerky side. It's watchable and in many respects is of a very good quality... until someone moves. The slight problem is that it's the S connection into a CRT TV so although I've got the icons and text set to one step up from a blind person, it's difficult to try to diagnose with the same confidence as a proper monitor display. Thanks very much, Jon.