I have sound and pixellation errors on Sky Sports HD both recorded (from sunday)and now. Also C4 HD (recorded) was poor last night, but seemed ok tonight. We have a 2/3 month old replacement tivo box but the issue is also on our v+ box. We had a signal booster fitted when we had the replacement tivo box. I have tested the boxes as per online instructions and it says they are all fine. Please help as this service is not good enough for £100+ per month!