Videos. On your phone, tablet, laptop. That is the only way I survive time on the dreadmill. Here is a list of some of my favorite things to watch while churning out any interval, hill, or timed treadmill workout.
-The fabulous films by Kerry Ward, an ultrarunner who takes you to the Grand Canyon, Bigfoot, runs in parks in Hawaii, etc. Anything on his YouTube channel fulltiltward
–Billy Yang Films Like ‘The Unknown: The Hardrock 100’ He has a bunch more.
–Shorebreak (Not running related but a great photography/surfing series and you need Outside TV or something like that)