Hello Everyone, first post here, I hope its not an obvious question, I have done a quick search with apparently no results. Basically i have just purchased one of these lg 42LC46 (seems to be equivalent to LG 42LC55) and in my picture setup menu the XD ENGINE option is greyed out, i.e. inactive, this is on the standard tv input from the aerial into the coax input, I do have the television in digital mode and all other functions are active. Am I doing anything wrong or have I been sold a turkey as the spec says it is powered by the XD engine 2007. One other thing is that the XD demo where the screen is split in half showing it on and off works. Please be gentle with me on my first post, thankyou in advance for any help!