I enjoyed your podcast. First one I've actually downloaded and listened to, but I'll be doing so again from now on.
I do have an observation to make. The entire HD discussion focussed purely on the visual content and representation. I didn't quite agree with all the opinions expressed (and let's face it it's a very subjective area

) but what really shocked me was that absolutely no reference was made at all to the difference in audio quality available in the HD formats. Now I am no audiophile or expert but I, and even my wife (who really doesn't notice this kind of thing tbh), can hear the clear difference in audio quality in the uncompressed PCM streams. Now I know not all HD transfers include the uncompressed audio tracks presently, but the key point for me is that you have a format which supports it and as time goes on more and more will be released with it. It does require the consumer to have the AV set up to support it and realise the benefits, but then I don't consider this to be any more of a departure than it was for us all having to upgrade to 5.1 systems when Dolby Digital 5.1 came on the scene.
I'm a strong believer in that audio is 50% of everything you see and feel that this was completely overlooked in the comparison.
I do agree that to junk one's entire DVD collection (and that'll never happen in my case as I'll be like the guy on the podcast who continues to keep his Laserdiscs) is folly, but there is definitely a case for opting for a blu-ray or HD-DVD format of a film over its DVD equivalent if that format contains the enhanced audio capabilities.
Finally I applaud the guy who said "if I want it, I'll buy it!". I am completely on board with that. Of course HD formats will be more expensive than their SD equivalent, but a product is worth what you are prepared to pay for it. I don't find blu-ray/hd-dvd prices to be prohibitive and if chosen carefully are worth every penny.
Interesting podcast though.
[Footnote] Apologies for not remembering the names of who exactly said what on the podcast