“The early home video releases on VHS and laserdisc (also more obsucre formats such as Betamax, CED and VHD) featured the Dolby Stereo mix, identical to that heard on the 35mm theatrical prints. The superior source being the Japanese pan & scan laserdisc released in 1991, which contains uncompressed digital stereo audio. Playing the mix through a home Dolby Pro-logic decoder authentically recreates the original 4-channel surround experience.”

http://originaltrilogy.com/topic/Star-Wars-sound-mixes/id/15294

I just checked and it does not have this line:

“The tractor beam is coupled to the main reactor in seven locations. A power loss at one of the terminals will allow the ship to leave”

Just lucky I guess!