Why is my LCD tv fuzzy?

You did it right. Your cable box looks like crap, your LG DVD looks like carp, your OSD (on screen display) looks good so it's not the panel. Your digital main board is bad. The part # is #DUNTKD934FM01-V0. The VO means you need to open the set and look for the yellow triangle on the board and the VO or version number is in it. If there's no number in the triangle, it's a DUNTKD934FM01-V0. Say there's a 3 in the triangle, it's a DUNTKD934FM01-V03. See people who read this, if you give a model number, you get a real answer. If you don't, well, you know the stupid answers you get!