Unsound is correct. The broadcasting environment is totally different in the UK than in the US. Stations are more broadly spaced, distances are smaller, government run stations are uniform in their transmitting power, one could go on and on. This puts a different spin on their tuner characteristics. Audio quality is favored over RF performance. Stereophile once reviewed one of the screamin' expensive Naim tuners and said that the tuner was the best in the world if you could physically see the transmitting tower! It's not quite like that and, sure, a good antenna always helps, but selectivity is typically weak in these tuners and sensitivity and capture ratio are usually not too far behind.
