Are those Tegna stations by chance? I googled NBC Indianapolis, and got WTHR, a Tegna owned station. If that’s what you’re missing then you are out of luck, Tegna and Dish are currently under a contract dispute (yet again) and that means no programming for people that get the channel over satellite and no OTA data for people with an antenna. It’s the same for me with Houston CBS KHOU 11.1, which I get over OTA but lost the guide data. Even if you get a contact they won’t be able to help because they don’t have permission to provide the guide data, despite coming from a third party.