I have recently lost channels 56-1 through 67-4 in the Niagara Falls, Canada area. They were all available to me with reasonable signal strength reception but they all disappeared all at one time a few weeks ago. These are all Batavia/Buffalo based stations but I am getting other Buffalo stations on other channels. I can't figure out what went wrong. Any solutions or ideas? Does anyone have a phone number where I could inquire about this?