Microsoft Confirms HDMI Port On Xbox 360 Premium - SlashGear
Amazon.com: HDMI Cable for Original Xbox 360 Console, Xbox 360 to HDMI Aadapter with Component Signal Output (Better Image), HD Converter : Video Games
Pro 360s HDMI'd - GameSpot
Microsoft Xbox 360 Elite Review | Trusted Reviews
Amazon.com: Y.D.F Xbox 360 HDMI Converter, Xbox 360 to HDMI Converter HD Link Cable for Xbox 360, Xbox 360 to HDMI Support 720P / 1080P. Compatible with Xbox 360 and Xbox 360 Slim. : Video Games
Can the first generation Xbox 360 support HDMI? - Quora