921 and 480p Panasonic TV

[dj5]

I have a four year old 36" tube type Panasonic TV that is capable of receiving 480p. I currently have a DVR-508. Would the DVR-921 improve the picture quality on this tv or would it not be worth upgrading to the 921?

Thanks

[Cyclone]

Not nearly as much as it would if you had a HD set. It would be the same as a progressive scan DVD player.