The first thing you should do is check the HDMI port on your TV. Ensure it's clean, free of dust, and not damaged. You can try switching to a different HDMI port to see if that resolves the issue.

If your Samsung TV’s HDMI port isn’t functioning correctly, this guide provides multiple troubleshooting methods to help resolve the issue. Follow the step-by-step instructions under each ...

So I bought a video card with an HDMI port for the express purpose of hooking that up to a video receiver, and now it doesn't work. The TiVo works fine, and the card is a cheap nVidia 8500 that ...