The two-page format started with PT 66 in the 62-71 book. I was also wondering how some of the older videos got the new format. Guesses: licensees can get them that way from LSAC or they can, and 7Sage did, cut and paste.
They will provide it for you and there is an example on the LSAC website. It is a large print format. If you were approved for your test booklet then you just mark in that only.
The Kaplan review course provides almost all of the prep tests in PDF format (except the 10 most recent). But the course is more expensive and not worth enrolling in for the sake of obtaining the PTs