Re: DRM again........
Strange... £50 would buy him a good enough stand-alone Blu-Ray player deck. Still, if his eyesight doesn't allow him to see the benefit of the format, why bother?
However, see what the situation is a couple of years. It might be that High Dynamic range images prove to be clearer for people with impaired eyesight.
Still, it depends on whether he enjoys the cinematography of Lawrence of Arabia, or the gags of Tommy Cooper.