Crackling picture

[luffy]

Hi,

For the past couple of days, i've been having this issue, this includes from the day I got the box.

I did not have this issue when i switch out my Technomate TM Nano 2 Super for this model (Technomate TM-Nano-SE M2 PLUS).
I've tried to replicate this on my Nano 2 super and Sky box, but there are no issues. It's just on this box.

I've even had the engineers round in the morning, and they've replaced all the cables, but i get this issue below. It's on a lot of channels.

andtvhd problem.jpg

Any help is appreciated.

EDIT: I've found out if I disconnect my cable coaxial, the channel works perfectly. What I'm guessing is some sort of interference from the cable portion of the box?