My freeview box is showing all channels except ITV & channel 4 channels where the screen is breaking up. I bought a new digibox but it is still doing the same
its prob u have a poor signal where u r, u might neeed an areil booster to strengthn the signal. i couldnt get many channels... so i bought a Booster, now i have all the channels :) x
Yes you almost certainly need to upgrade your aerial.
Look up High Gain Aerial/
Does your DigiBox have a signal strenght reading somewhere amongst the menus.
When all digital comes on I understand the signal strength will be increased.