It's important that you incorporate both aerobic (cardio) and strength training specific to the areas with OA. If you can tolerate walking for 10 min at a time, that is a good place to start. Begin at a pace that is comfortable for you. Try strengthening your quads with some sit-to-stand exercises and some body weight squats keeping your abs tight through all exercises. You can do sit-to-stand during commercial breaks!

Lori, do you have RA or OA? Not knowing your history, etc. I don't want to say/"prescribe" too much, but I would love to help point you in the right direction. The important thing to remember is that you know your body better than anyone so work on exercises as you can tolerate.