How much upscaling does a 4K TV do to a DVD?

Episode 1328 (1:55:39)

Glen from Louisiana

Glen wants to know how much resolution a DVD really has compared to a Blu-ray. Scott says DVDs are standard definition which is 720x480. Blu-ray can be 1920x1080 and above. How will it upscale? Scott says the newer his tv, the more it will upscale. If he buys a 4K TV, it will be about 10 times the resolution. The more upscaling it does, the more problems can happen. Scott says he may consider streaming from PBS. It may be in HD, rather than SD.

(Image: By User:Wanted, User:Ochro [CC BY-SA 2.5 (], via Wikimedia Commons)