huh, i didn't know the Pro upscaled standard Bluray to 4k, why did Sony not mention that?
It upscales anything. That's not a magical feature, its just normal operation.
Its still only a 1080 film. If it wasn't upscaled then it would be in the middle of your TV with a load of black surrounding it.
i must have missed that, it certainly does a much better job than my TV, and i thought it was pretty good on the KS
Not entirely surprising depending on your TV.