Things You'll Need
Instructions
Purchase an Xbox 360 HDMI Conversion Kit. The kit can be purchased online, but, because consoles now come with the HDMI port installed, they are difficult to find. Microsoft and Mad Catz have stopped mass production of the devices, but they can still be found at local retailers and on eBay.
Purchase a HDMI cable. Microsoft produces an official cable, but any HDMI will work and produce similar results.
Attach the HDMI cable to the back of your HDMI-compatible TV. Many flat screen TVs now come with at least one HDMI port.
Attach the other end of the HDMI cable to the Xbox 360 HDMI Converter Kit. The end should fit snugly into the device.
Attach the Xbox 360 HDMI Converter Kit to the back of your Xbox 360 console. The device will display on your TV's HDMI channel the next time it boots.