I have recently given my old (2008) Samsung LA40M8 TV and Freeview Box (T1020) to my daughter in-law who lives in Waihi. Her place has a fancy looking UHF Ariel on the roof and we can successfully load 11 channels but only ones like Maori, Al Jeeza, Shopping, China etc, All scans start with channel 21 like the box isn't even attempting to look for One, Two, Three Prime etc. Worked fine in Wellington and the Channels it does find in Waihi are clear enough.
Any ideas anyone?
What you may have to do is try a factory reset with the unit to get/find the missing channels