I'll have a signal strength of 80 out of 100 and the signal will drop out. It seems the signal strengths are fluctuating. This was not happening before.
First of all, if you want advice post your location, antenna model, height and Rabbitears report. It sounds like you're describing multipath, which has always been a problem in the hilly bay area - before and after the repack.
If you're noticing it now and didn't before most likely that just means you had a marginal setup, and ended up on the wrong side of marginal. Everybody is still watching TV after the repack, you won't be surprised to hear. So post up and we'll probably tell you to get a proper directional antenna, which is the only practical way to address this.