OK...I put an antenna in my attic, and was receiving all off air HD local broadcasts--perfect. The other day, the FOX network's HD went down--confirmed by the station ( a "splicer" problem). It is now back up, according to them, but I am receiving nothing--a "0" or "--" signal strength. All of my other HD channels are working perfectly, but the engineer at FOX (who has been doing his very best, but I believe now is at a aloss) has been unable to get my picture back or explain why I am still not receiving signal. Has anyone ever had this happen before? I have a 50" DLP RCA Scenium. Please help.