I had 30 minutes to throw the pilot up on the big screen tonight. I can't believe this is the same show I grew up watching. The detail is IN-SANE in most scenes with very natural grain. In my limited viewing, I did encounter a couple scenes that were very, very grainy and then a couple that had very little grain, BUT if I hadn't seen scenes with more grain, I wouldn't have noticed any missing. I don't know how distracting it would be in actual viewing since I was skipping around a bit. I can't really comment on the colors since I don't remember what they looked like on my parents' 1980s 19" TV, but they appear pleasing to these eyes.
I'll investigate further and post screenies this weekend. So far, the audio is great for sure. If you like the show, you should spend the $18.