Being the home automation enthusiast and restless technologist that I am, I built my own universal remote control months ago using an Arduino, an IR LED and a Ruby on Rails application running on my computer. My app works great over WiFi and I can even turn on and off these devices when I'm off-site. I even pre-programmed cascading functions so that when I press the "All Off" button on my app, my TV, stereo and video game console also turn off.