The Making of Star Wars, VHS, Magnetic Video UK 1979
Fullscreen, PAL, No Hi-Fi.

I have two editions of this tape, with one having a bonus trailer for The Empire Strikes Back after the end credits. The bonus trailer version is, I assume, a later edition. I don't have the case for the Empire variant, so I don't know if there is any way to tell them apart without playing the tape. I believe this was released in 1979, as that's the year that is printed on the US release of the same tape. Magnetic Video was bought by Fox in 1979 and became 20th Century-Fox video. At the time I got my first copy in 2007, these showed up intermittently on eBay but usually failed to reach a high price. I can only assume this has gotten rarer, and more expensive, with time. See also the UK Betamax counterpart and the USA VHS counterpart.

Assorted screenshots:

Copyright notice	Company logo	Title card
Our hosts	End credits	Bonus Empire trailer