The Empire Strikes Back, Laserdisc, CBS/Fox video UK, 1985
The struggling laserdisc format met with limited success in the UK, nevertheless, both sequels were issued by CBS/Fox in collaboration with local distributor SG records & video. Although referred to as "Laservision", it is the same format as Laserdisc.
The proliferation of the Laserdisc format in the UK was small and these discs rarely show up on the second hand market. Particularily the sequels are hard to come by. I've never encountered a set in satisfactory condition. Yet.