I have a 1999 65" Mitsubishi serial # WS65903 rear projection TV with a Mitsubishi remote HDTV Box #1080. I have tried Direct TV, Dish TV and now Verizon Cable but I ca not find a way to hook up to the HDTV Box. How do I hook up HDTV to my TV

What you need is this: I purchased my mom the same TV the 65" rear projection Mitsubishi WS-65903 and this TV was released the year before HD Signals came out from your cable providers. The problem is this Mitsubishi does not have an HDMI outlet on the back of the TV which most Cable and Satellite Boxes are fitted with today for their Receivers: I called Mitsubishi and after getting the run around I finally put my foot down and got this answer: The only thing that would recommend that they were sure would work is the "Key Digital Video converter, KD-VA5" Here is the link and it is not cheap around $350 for it: http://www.ramelectronics.net/audio-video/video-converters/vga-rgb-hv-to-component-video/key-digital-video-converter-kd-va5/prodKDVA5.html Plug this into the socket below the 5 BNC outlets on the Back and then use RED, Green , Blue Componet Cables to get your HD Signal from your receiver... I have not found a Adapter or Video Componet for the HDMI Cable Yet but this will work... Good Luck

Mitsu recomends the KD-VA5 currently.

You need a special add-on from Mitsubishi called a Mitsubishi RGB-CV10 adapter. After you buy this, just follow the easy step by step directions and you will have HDTV. Also, if you need help call your service provider for a manager-technician to help you install it. Just figured it out tonight...Good Luck Do not buy the other option from another company, because it is useless. (Key Digital Converter)