I have just built a gym and cannot hear the tv when running on a treadmill. I have looked for some kind of cordless ear phones which is not a massive set of heavy earphones and cannot find anything. Ideally what I would like is a transmitter that would plug into the ear phone socket of the tv and a receiver that I could strap to the treadmill and into which I could plug my lightweight ear phones. I have googled and googled but have not come up with anything like this. Does anyone have any suggestions?
I think you are going about it the wrong way, turn off the TV and the teadmill and get outdoors. Plan a route that will give you uphill and downhill sections, time it on the first day and then try to improve on it. Having the TV on will tend to make your mind wander, even music will slow/speed you up depending on the beat. Keep the treadmill for very wet and cold days.