With the Belkin Conserve Smart 8-Outlet Auto-Off Surge Protector you can turn power off to components like DVD players and gaming consoles by use of your TV's remote control.
I 've had this product for over a year now... works flawlessly... and by automatically cutting power to my HDTV and other home theatre components when I turn off one component (usually my PC), my electricity bill has dropped $20 to $25 a month. Highly recommended... good for the planet and the wallet.