I've had the same problem with our V+ box for weeks now too, ie. stuttering, freezing and pixelating. It has gradually got worse to the point where we can hardly watch it anymore. It not only happens on live tv, it does it with recordings and even when watching on catchup / demand. It does it on multiple different channels both hd and sd and at different times of the day so its basically unwatchable at the minute. We have the TiVo box downstairs which works fine but the V+ box is upstairs is the one with the problem.
Someone has just informed me thatvit could be a hard drive problem? Can this be looked into please as we've tried rebooting it numerous times but nothing seems to help.