You want to make a difference in energy-consumption, eco-whackos? Turn it all off and leave it off. Especially your computers, modems, routers, servers... You'll save all kinds of energy! Do it!
I also like this approach. Wish I knew more about power transmission.... But I'll be striking my blow for human freedom and achievement by refusing to modify my usual Saturday evening activities. It will have exactly the same effect on the climate as celebrities eating specially-arranged candle-lit dinners: none whatsoever.