TMP - I did a double-take when the opening credits rolled for TMP, they were soft and blurry. Tapping "details" on the remote, lo and behold, it was 4K HDR dolby blahbetyblah...
...but the inlaid text with the Klingon and Vulcan scenes quickly reassure this is a proper 4K release. There's a lot more in sharpness, accurate color timing, and overall detail that confirm fast enough that it's proper 4K, and the number of composited bits at the time was daring - not since 2001 had anything like this been used. (Yes, Star Wars is known for its effects - lots of whiz-bang boom boom distance shots. Not the close-up stuff that adds a scale of tangibility that SW lacked more often than not. TMP really sells the scale eminently well.
Definitely do read review websites' articles as some scenes do have soft eras, with verbiage to reassure like "one too many times through an optical printer, but that aside nothing like the excessive DNR of the 2009 release", and so on. This set is by far the best the movies have ever looked (and sounded), bar none.