The DVD's look good?
When has 480p ever been considered to "look good" or good quality? In 1990 sure...
DVD (480p) was hardly a jump in quality from VHS (400p)
Blu ray (1080p) is fantastic quality, but it even comes short to the actual resolution of film which is 4K which is 4 times 1080p.
The films were released on blu ray, I don't see why the TV series can't be either.
Twin Peaks is coming out on blu ray just this month.
Nobody buys DVD's anymore. My local best buy has one single half-isle for DVD's compared to 6 full isles of blu rays.