I was in middle school. I watched it with my Uncle (who was in another timezone) on speakerphone.
To clarify... my uncle is the guy that got me into star trek to begin with; and scifi more broadly. We may had been visiting him and my aunt when I was like five or six, and my brother had a soccer thing in the area. I discovered his VHS collection, including TOS and all the movies that had been made. I was caught binging them when I was on Trouble With Tribbles- he had walked into the office/temporary bedroom, was like "HEY! this is my favorite episode. Rewind it while I go make popcorn!"
And then we proceeded to binge watch the rest of star trek.