Suddenly lost a few over-the-air channels

I live right in the middle between two major cities. 20 miles each way. 60 channels total. Great reception. All of a sudden I have lost five channels on my TiVo bolt. I hooked up my antenna to my TV to see what I'm actually getting and those channels show up. Not sure exactly what's going on but it's like the TiVo Bolt will not recognize the channels. These channels are major CBS channels. Something that I watch a lot of and record. This is something I really need to find out what's going...

Suddenly lost a few over-the-air channels

Suddenly lost a few over-the-air channels