Seriously, no. How much lazier can we get? I personally enjoy walking myself, I don't need something to do it for me... And when I stop walking, I want to stand still, not continue moving. Also kind of seems a waste of electricity.
A better idea is to just not endlessly repeat shit. Repeat it maybe once every few months, and the rest of the time: if you don't have anything new to show, just turn off the fucking transmitter. That should save some energy.