When you had family over for Christmas, did you show them your amazing HDTV and Blu-ray player? If they're like a lot of people, they said, "I don't think there's a big difference. They're just trying to make DVDs more expensive." We hear that a lot. And maybe you're not the one showing off the HDTV; maybe you're saying that, too.

Well, either way, that's fair, it turns out. According to a group of opticians, even if your eyesight is just barely off from 20 / 20 vision, you can't fully appreciate the difference between standard and high definition video.

The group of eye doctors, all working in a chain called Vision Express, say that about one-third of all people need new glasses or contacts to be able to appreciate HDTV or Blu-ray. Maybe they should give away free HDTVs when you get LASIK eye surgery, or at least a free Blu-ray disc or two when you get a new prescription, eh?

The doctors suggest that you get your eyes checked before you make the leap to high definition. Not a bad idea, although we're pretty sure they just want more business!

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