Why should I choose Freesat instead of Freeview received via a TV aerial?
Because there are more HDTV channels with Freesat. Freeview television is recieved through a digital set top box/PVR. In the future Freeview will broadcast HDTV but not until analogue TV is switched off. However there will still be less HD channels because of the large bandwidth required. Freeview has about 40 channels whereas Freesast has over 140.