I just bought an LG 47LW5300 LED TV a couple weeks ago and was going to check out the tennis matches in 3D but my box (Scientific Atlanta Explorer 8300 HD) and my TV are not communicating so no signal is going through. I used this box on a previous LCD TV with HDMI and it worked. I called Cablevision customer service and they said the issue is not with the box or the signal but with the TV and box not seeing each other. I use the same HDMI cables that I tried for my PS3 and Xbox 360 and haven't had any problems getting those to connect and work. I disconnected, reconnected, shut down, restarted, etc. pretty much anything and everything I could, but no dice. Any suggestions on how to fix this? I can't get my TV to display the 3D properly without using HDMI for the box. And yes, I know 3D is kind of tacky and may be overblown, but I bought the TV for gaming (which it does quite well with) and was just curious to see how the live TV looked.