Where in London Centre can i demo Panasonic AE500 and Hitachi TX100? I'm based in Warwickshire. Sevenoaks in Birmingham told me LCDs are not very good so they only have DLP. I plan to visit a friend near London soon so I could go then. I've discussed with Liam of ProgressiveAV, but he's further distance away and Hitachi's are selling fast it seems. Thanks.