At home on the trainer I have to be watching a spinning tape. Regular tv or movies don't do it for me unless I'm just softpedaling.

If I use the stationary bike at the gym, I leave the tv off and just listen to music. I pick a good song and repeat it over and over.

Either way, I find doing intervals is the best way to make the time go by. Always easier to focus on 2 minutes than 45 or 60.