This is true - there were two telecine masters of the first film made for NTSC. There was the one used for the VHS/Beta releases (later used on the non-time-compressed LDs), and the one used for the time-compressed LD/CED releases (also seen on HBO - and it was time-compressed there too).

The only NTSC video masters to be made after 1982 were the widescreen transfer for the Japanese Special Collection in '86 (from the same film source as the earlier transfers), and the new widescreen transfer in '92 to fix the "shrinking ratio" issue, from the same picture element that would be utilized for the Definitive Collection (seen on the '92 widescreen VHS set and the '93 Technidisc pressings of the Special Widescreen Edition LD).

One of the reasons that the "digitally remastered" THX releases in '93-'95 looked so impressive back then is because we had been watching old 1" analog transfers for over a decade.

As for PAL, right now I think there was one pan-and-scan transfer done in '82, and a widescreen one done some time in the late 80s (which appeared on the pre-THX French and German widescreen LDs). There needs to be more research done on the PAL transfers; that's why I keep suggesting preservations of pre-THX PAL laserdiscs, widescreen and fullscreen.