Related to the grey blob that permanently resides onscreen, I appreciate the responder's suggestion to be polite with Sony. I agree, and have maintaned a courteous approach despite Sony, so far, denying that there is any defect with this TV. They advertise the product in marketing literature as having "a viewing experience that can't be replicated", and "the most lifelike picture TVs have ever been able to create". That is simply not true with our set. Having paid $5,500 for this TV in November, it has been frustrating to see Sony's disregard for our problem. Sony does NOT stand behind their product.
As I said in my post yesterday afternoon, I would strongly suggest that anyone looking at the purchase of an XBR Z9D should, instead, look at other manufacturers' sets. LG and Samsung come to mind. I don't have any experience with these companys' stances on warranty issues, but there is no way they can be worse than Sony.
If someone knows contact information for an upper level North American Sony support person, I would appreciate receiving that information.
All the Best,