Hi, I've got the iMac in my office connected to a tv in the living room via miniDisplay->HDMI and it works great! I'm usin Plex to browse my media, and I love it! The only thing I'm worried about, is the fact that I cannot turn off the iMac monitor while watching stuff on the TV. I've looked around the net, and I can't find a solution. I'm not bothered by leaving the screen on, except that it uses more power, and I'm concerned that the screen will "burn in" by showing the same picture for extended periods of time... Can the screen in any way be affected by showing the same picture for long periods of time (e.g. 5 hours)? Even better, has someone come up with a solution for simply turning off the iMac screen while using Plex on the TV? Thanks!