I am looking to get a HDTV next month and have just started the research. I really like the Toshiba sets for the price. What is the diference between the 56h80 type model and the 57HX81 series sets. H vs HX. Huppins here in town has some great deals now one the H models. (onecall) for you internet guys. Thanks for the help!! What a great site!