Seems odd. About a month ago, I lost the hd side of some of my channels. Sd still comes in just fine, and I only lost some hd channels. A few of the still good signal inHD are 229, 238, 239, 240, 246, 249, 256. Some of the hd channels lost are 231, 232, 236, 237, 241, 242, 244, 245, all locals. Any ideas or thoughts would be greatly appreciated!