Some time ago I noticed (like many have stated here on this forum) the signal or reception doing strange things. The picture would sutter, become pixelated but the audio would keep going fine.

 This would last a few seconds to many seconds.

 I have a Dish TV T1050PVR unit and so decided to contact Dish TV, who in the past have been extremely helpful. We have a clear line of sight to Sugarloaf and no tress etc in the way. All channels come in fine.

 Details I filled out for their website support were:

District/Area: Rangiora

Freeview Receiver Model: T1050PVR

Current Software: A3U 20 12C

TV One signal: 94 - 96

TV One quality: 90

TV3 signal: 96 - 98

TV3 quality: 90

Prime signal: 95 - 97

Prime quality: 90

 Now the technician came back and said

This sounds as though it could be levels of interference causing this problem, this wouldn't effect you TV 1: because its signal tuner and it required less signal etc 2: because it has multiple tuners and a system that sends on UHF signal to the UHF tuner thus resulting in any interference being filtered out.My recommendation is you try a UHF band pass filter available here: http://www.dishtv.co.nz/vmchk/Amps-Filters/76-UHF-Band-Pass-Filter/...

 This UHF band pass filter does the following (from the Dish TV website)

As the North Island of New Zealand still has both UHF and VHF transmissions some areas suffer from VHF overload on Freeview|HD UHF receivers. Areas of New Zealand also have very strong cell phone signal that can interfere with Freeview|HD UHF receivers. This is often seen as pixellating on screen, or sound and picture cutting out. These symptoms can often look the same as low signal but a test will show that signal levels are high. The problem is being caused by high levels of VHF or cell phone signals in with the DTT UHF signals.

This filter removes unwanted VHF, FM and Cellphone signals and lets only UHF signals pass through to the Freeview|HD receiver. Simply connect it in the aerial line behind the Freeview|HD receiver. This filter uses RF plug/socket like most aerial cables.

Please note this filter is for use with a UHF aerial. It is not for use with a satellite dish.

Perhaps installing on of these simple filters may help.

(Note: I haven’t yet tried one…….really doesn’t bother me)