Movies look great on Blu-Ray. TV shows from the '70s, '80s, and '90s look like shit.
TOS looks the same on Blu-Ray as it does on regular DVD. New shows, shot in high definition, look great.
I won't even go into 3-D or RGBY. Not now. I think it's stupid to introduce these new luxury items during the Second Great Depression. And, yes, that's what it is even though people won't bring themselves to admit it. They shouldn't strong-arm people into making these types of purchases during times like these.