That it worked before. https://www.cnet.com/products/panasonic-th-42pd25u-p/review/ doesn't note this to be a smart TV so updates are rare to never.

-> Let's cover a thing that had a client looking in vain. They had cable TV and suddenly lost all their channels. What happened had nothing to do with the TV. Comcast and others decided to encrypt all channels and blammo. No more scanning.