My flat is in Calafell, near El Vendrell, which is on the coast, N of Tarragona, S of Barcelona. My installer, who is local, says 80cm should be big enough (I think he installed some of these for Sky users). I hear that further south you need 1m or even bigger, but he reckons for us 80cm is sufficient. I'd be interested if anyone has different experience. But my question was really about the postcode thing. I read it is required to select regional programming (I expect ITV insisted on this). The instruction book for the Humax mentions different transponders (I am sure they are all on the 2D satellite) being used for different regions, and they also specify a default transponder number, in case the postcode entry doesn't work. So I imagine all these aerials on the satellite, maybe with different signal powers, and maybe pointing in slightly different directions. Now tell me that's not dumb!