I used to think that running was boring and that I'd do more of it if it were less boring. At the time I was running on a treadmill while watching a TV show. But every time I hit the end of my run and went into the 5 minute cooldown, I'd find myself becoming engrossed in the show and not want to end. The difference? I wasn't exercising as hard any more. I was getting tired, not bored.

Now I run outside for sometimes five times as long as I was running back then, without podcasts or TV shows, and I never get bored. I do run slower, though. Try going slower next time! And going outside in a straight line or long loop. I get very bored/frustrated if I have to do laps to make my distance. Of course YMMV too.