Lil Brutto said:

I came across something very interesting last night. The US theatrical trailer included on the 1990 MGM laserdisc is unique to this home release. It is from a different source than the other laserdisc releases (1993 box set, 1998) as well as the DVDs and BDs. The sky was still blue in this print (i.e. MGM took the yellow tint to an extreme on the BD) but overall it has a striking resemblance to the 4K BD, no?

Pics taken of my TV screen using my phone.

Just looked that up myself. From my capture of that LD:

LD trailer (top)/LD feature (bottom)

Does look much closer to the 4K but it is a trailer....