We use the TV remote to operate the TV. I believe we are using a direct coaxial cable to the TV buty I'm not sure.
There is no Cable box.
I just went to check and the TV is now working. Go figure.
Sorry the message was no signal though and yes the channel information was coming up.
There is an INPUT button on the remote.
If you could please let me know how to fix it if it happens again that would be great.