TaraB1
I've come to the same conclusion after a couple weeks of this. I also think this has nothing to do with any software update pushed out to our respective televisions, rather it seems to me there is something desperately wrong with the OTA TV listings EPG database that Roku is using to feed the online guide via internet connected televisions. My reasoning is based on the observed experience of myself and other commenters here that disconnecting internet will cause the OTA guide listing to suddenly show correct information; this is because the digital carrier signal contains embedded program information for most every channel (some few stations do not) that will populate into the guide. However, as soon as you reconnect to internet, the OTA guide immediately switches to the preferred EPG info source from Roku's database, and the erroneous guide data propagates all over.
Alas, the Roku dev team is likely working on it and will eventually fix it, despite any of us continuing to rant on this blog site. I remember the whole fiasco with the disastrous decision a year or so ago when Roku devs chose to combine the OTA and Roku Live channel guides together without any notification or warning. I got into the hue and cry, and it took many months before Roku dev team finally split the two guides back to the way they were before; this time I decided it isn't worth getting all worked up about it.
To a lot of people it may appear a simple switch, but this old software engineer knows that it is many, many times harder to fix what you broke than not break it at all. Perhaps Roku needs some farsighted architects to visualize use cases and failure modes, instead of just throwing stuff on the wall like a handful of spaghetti to see if it sticks.