This is a weird one. Last week Comcast in my area opened up some new 4 digit HD channels (1003,4, up to the 1600's). My TV with the SA STB pulls them all in, resetting my other TV with cable card got them as well, but my PC with Ceton Infinitv4 shows nothing over 600, even after resetting the cable card, rebooting the PC etc. I called Comcast and got a pleasant man named Patrick who, with a couple of adjustments, got me a bunch of channels above 999. Had to go through the Windows Media signal set up again to get them into the guide, but there they were.....but alas not all of them. Got, for example, 1004 (NBC), but missing 1003, 1006, 1007, 1009, 1024 etc. which means all the networks! 9 of 10 channels missing in the 1003-1024 range. Hence I called Comcast again yesterday. Well that 'chat" with Comcast ("Michael") did not go so well. He never heard of Windows Media Center, a cable card tuner, InfiniTV4, or a PC as a device for TV management!!! A bell only went off when I told him it acted like a DVR. He then told me to turn it off and he would try some things. I could "rescan my channels" and he could call back. I rebooted the PC, reset the signal, reset the guide, removed and reinserted the cc and wound up getting no change. When I told him, he said all is good at his end, must be my stuff and it sounded like I would need a service call and there could be a charge since it is not their equipment. At least Patrick accomplished something, but this one just wasted time, mine and his. Just when I thought Comcast was improving, I get this..... Thoughts, anyone?