Is it possible that you accidentally changed the switch on the back of your TV set from "Antenna" to "Cable" ?
If it's set to "Cable" by mistake, you'll still get channels 2, 4, 5, and 7, but anything above 13 won't come in (because over-the-air and cable use different frequencies for channels 14 and above). Can you still get 38, 44, and 56?
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If it's set to "Cable" by mistake, you'll still get channels 2, 4, 5, and 7, but anything above 13 won't come in (because over-the-air and cable use different frequencies for channels 14 and above). Can you still get 38, 44, and 56?