Hi Guys,

I seem to be having problems with viewing certain channels. If i select any of the below channels, which all seem to operate on two transport streams, both 07e9 and 07e4, i get picture break up. I also notice that if i go to the signal quality in the services menu this drops on any of the channels.

MTV HD (126)
Comedy Central HD (112)
Dave HD
Watch HD
National Geographic HD

I have checked and they all appear to operate on the same two frequencies. There might be other transponders/frequencies that im having problems with i just havent come across them yet.

This is happening on both my sky boxes so i dont think its a problem with them.

Can anyone shed any light on how i might be able to resolve this, or test better to find the cause?

Thank you in advance
Ben