Not sure how many people are affected by this, but I'm seeing all channels above about 700 shifted by one channel. So for example, channel 815 is showing what should be on 816, etc. The problem started some time between 9pm Thu and 9am Fri, and is currently still happening as of Fri at 11pm CDT.
I've confirmed the problem with one other person in my area, so I thought it was worth posting just in case it's not just us. TWC didn't know anything about it, but said they'll look into it.
Might want to check your recent recordings.