i'm having problems with some channels, the image pixelates, freezes then i get the "no satellite signal is being received" message. this is mostly the bbc channels but also some others. in a few minutes it comes back then it goes. i've noticed it mostly happens at night, mostly. and i've got trees in the line of sight in my neighbours garden. i've re-aligned the dish to no effect. so i'm thinking of calling sky out. question is this, will they: 1. move the dish to a location i choose avoiding the trees 2. sort out the loss of signal all for the £65 call out fee?