Using an elliptical is a great form of indoor cardio. The machines are also better than treadmills for people with any sort of knee injury. And they’re convenient! My family and I have always joked about how fit we’d be if we just put an elliptical in front of our TV.
If you’d like to get an elliptical but don’t want to drop a ton of money, the Sunny Health & Fitness elliptical is only $149.17 (17% off) at Amazon. It is tiny enough to set up right by your TV and it won’t block everyone else’s view.