We used to just leave a vehicle parked somewhere while we made dinner or did other stuff and let the radio play!
People sometimes would stop by and realize, after a bit of convo, they were hearing something and be baffled as to what the hell we were listening too.
We had Wrath of Khan on Select-a-vision when I was growing up. One of my first introductions to Star Trek other than snippets of the original, I was a kid. It terrified and fascinated me, definitely sparked my love for the series.