Just came across these nicely put together videos:
Tokyo Highend Show:
http://video.psaudio.com/videos/tokyo_high_end.php
Munich Highend Show:
http://video.psaudio.com/munich.html
Rocky Mountain Audio Fest:
http://video.psaudio.com/videos/rmaf.php
London HiFi Show:
http://video.psaudio.com/london_hifi_show.html