I got the idea from something I read about a teacher in a film class or something similar that had their students listen to TOS as an exercise, and I decided to try it myself! I still prefer watching to listening, but it’s been pretty nice.

I was also doing something similar during my Voyager rewatch recently. There’s quite a number of episodes that are very generic, or sometimes just ones I don’t like that well, so I just listened to some of them as I worked on something else in the room. In that case I didn’t convert them to audio so I could still watch if I wanted.