The problem with exposure like that is that the presenter probably represents the views of the people watching and he thought it was miles too much money and old fashioned because it played CDs and he preferred downloads. Therefore IMO it was negative, but Hi Fi's problems are much more serious than that.
If you ask the public at large to name a hi fi company, they will mention either B&O or Bose and almost none will know any of the specialists. Also if you visit a John Lewis Department store you'll see a wide variety of portable radios etc, all for less than £200 and you'll see the Meridian Clock Radio which is £1500 odd. It looks ridiculously overpriced by comparison to a "layman".
Bose and B & O have have massive marketing budgets to convince people that what they do is the best, but B & O's UK turnover is still tiny compared to the likes of Sony or Panasonic. The problem for hi fi companies is that they aren't big enough to be able to afford to promote themselves in this way, but that they are still making products that are hugely more expensive than people's ideas of what they ought to cost.
If someone goes into a good radio and TV shop he's going to see some beautifully presented, probably Japanese hi Fi for a few hundred pounds and if he doesn't like it and wants better sound quality, he'll assume that for perhaps 20% more that he'll get it, but when he goes to a hi fi shop, he may be asked for five times as much and he may not be over impressed with what's on offer. A lot of specialist stuff isn't better presented than the value for money Japanese IMO.
I don't think demonstrating better sound quality is enough to convince the public at large to buy hi fi as it is now, especially as there are much more exciting new TVs and media type computers appearing. We were amazed at the interest in the Apple TV (also how many people had bought them) at the Gadget Show and it costs £200!
Ash