I already spend 1-2 hours daily(minus rest days) @ the gym(cardio & lifting). Even then I still have time to get home and plant my butt on the couch and watch the shows I've missed on Tivo. I've been contemplating getting a recumbent exercise bike so that while I'm watching TV for those 3-4 hours I'd put it on the easiest mode and just pedal away as I watch. Is this harmful to my body or is this actually a good idea, maybe somewhere in between? The workout of course would be really light, almost effortless but the purpose is to burn about 200 calories/hour more than if I were sitting. I've read that light cardio like this burns up mostly fat so this could be more of a good thing?