I have had no luck in getting the tech support from Panasonic to help me with my tuning problem..so, i hope you guys can give me some technical advise. I have a Panasonic TU-HDS20 stb (rev 8.10) and it is a second hand unit I bought of someone. The unit tunes well when perfoming the autoscan feature on all analog stations in my area. I am using it as a OTA tuner for now. I have disabled SAT mode. I have it hooked up to a Silver Sensor and it I cannot seem to pick up any ATSC(HD) stations on the autoscan page. It picks up analogs like a charm so i dont think the tuner is defective. Its not however picking up the characteristic 12-1, 39-2 ect... I have it aimed directly at the towers and have excellent los to them at about 10-15 mi. Antenna.org shows that yellow ant. would do the trick. It seems that everyone has a pretty easy time tuning once they have the right antenna and compass settings. I dont know what I am doing wrong. One thing that i find weird is when i select autoscan and stand near the box as its scanning, a green light comes on from the inside of the stb. It seem to flash just prior to a known ATSC station is scanned. it goes off and the HD channel is skipped to the next analog station which it locks. Is that a " HD locking" light? if ANyone has this box, please do rescan for your stations to see if you see something like this. I called ELgin and the lady says just send it to them for $100 flat labor plus $30 in shipping! And I dont know if I do have a defect or not. Thats before parts..I could not get her to tell me whether my box is bad or not..arrghh! Well it doesnt seem like i will enjoy HD before the bowl season. Please help guys thanks..