That being said, actual spin bikes are very expensive. They are very adjustable (much more than a standard exercise bike) to fit anyone. I'd be concerned that a spin bike from the T.V. wouldn't be made very well. They might not have everything needed to actually do spinning. If you are interested in getting a spin bike, try taking a few classes at your local gym. That way you won't make a large investment, and perhaps find you don't enjoy spinning.

That being said, walking and running are also excellent forms of exercise. Unlike spinning, they don're require lots of special equipment and can be done almost anywhere. Both have exellent health benefits and can be done by almost anyone. There are many types of exercise. Decide which types you enjoy and do them, as one is much more likely to keep it up long term. Good luck.