It is a lucky coincidence that the video revolution started soon after the first Star Trek movie was released. My 12 March 1985 diary entry documents my enjoyment of The Search For Spock on video:
"Over the weekend I rented out Star Trek III: The Search For Spock on videocassette for the first time. All told I watched it 4 times, which brings the grand total up to 7. It was great! Some of the scenes from the movie are among my favourite of all time, especially the scene with Sarek and Kirk and the fight on and ensuing escape from the Genesis Planet."