I too am running a Humax Freesat set-up, and one of the ploys I resort to is changing my postcode.Let me explain. If I discover that for example ITV 1 Central East is on a "stronger" transponder for fringe reception in my location than say my preferred region of Yorks East, then ! would change to an imaginary postcode in Nottingham, for example NG2 1BB. This gives me a better signal on channel 103. BBC1 is no problem as every region has a dedicated channel number. BBC2 can also be set to England, Wales, Scotland and Northern Ireland, for channel 102´which will be useful unless they are all on the same transponder. Also HD and SD versions can and do vary in strength. For LNBs I use Inverto Black Ultra single and twin, but not quad, which in my experience is inferior out here on the fringe. Sky carry BBC and ITV etc, but they are the same transponders and frequencies, so nothing to be gained, except that some channels, such as 5HD, ITV2,3,4HD are only on Sky, are encrypted so it might be a good idea to have at least a basic Sky subscription, but HD. Hope this is of use!