Thanks for all the replies. I did use both antenna inputs on the back and successfully scan channels prior to posting. I read earlier posts which helped me sort out the antenna scan vs the cable scan so I think I got all that right. During the scan a handful of channels turned green suggesting they should come in, but I was never able to turn the channels up or down because they froze the screen and rebooted the TV.
I didn't see the signal strength, thanks @teleview for pointing it out. I'm not sure if I could use it because the channel that did come in restarted my TV. Based on the replies, I'll get the cm 4010 from amazon because shipping is cheaper to evaluate the larger cm 4228hd or Winegard 1080 which I'll need to get help to install.
Stay tuned
