I have a Bolt OTA and antenna setup listed below. I improved the number of channels it receives by removing the Bolt cover. Doing so: - decreased the ODT temperature reported under Help - System Information from 67 deg C to 44 deg C - increased the number of OTA channels I received by about 25%, including several channels that formerly I could only receive by plugging my amplifier into my television. My conclusion is that Bolt OTA's cooling system leads to it running a temperature which messes up its tuners. That's surprising for a product marked for OTA reception. John - CM 4228HD OTA antenna - CM 7778HD amplifier - Tivo Bolt OTA (4 tuners) - Samsung UN50HU8500 television.