//One of the first things to try, is rebooting the Freeview box – Disconnect the mains power for 30 seconds and reconnect the power. Leave it a while for the box to get the information
It’s also worth performing a “re-tune” – From the box on-screen menu, perform a channel scan to make sure that all of the Freeview channels are stored in the receiver correctly.
Note that the programme information can take a while to be received, so allow 10 minutes before checking to see if the programme listing data is coming in.
If you’re still getting no luck, some other thoughts:
Are you getting all of the Freeview channels?
Are you getting a good signal?
Are other Freeview receivers in your house having the same problem, or is it just one box?
Has anything changes that may have caused the problem?
Still having a problem? Add a comment below, including the make and model of receiver, and your postcode (to check Freeview coverage)//
Have a read through this Sharon. Perhaps you have weak signal or antenna problems on the set not listing. Particularly if you have split the signal and it is on a longer coax or signal carrying cable.
http://www.tvanswers.org.uk/answers/missing-freeview-tv-guide-infomation.html