Thanks to those who took the time to share their ideas! The one that @SlimKicker liked best was from Ghee:
"Do mini workouts while watching TV such as doing burpees or pushups when there are commercial breaks."
Congratulations, Ghee! Thank you to all who posted a comment.
"I may not have gone where I intended to go, but I think I have ended up where I needed to be." ~ Douglas Adams