Have you tried these frequencies for Mount Tambourine from my previous post?
This shows that this Gold Coast transmitter, Mount Tamborine, is in a UHF area, with SBS's mux on 613.5MHz, ABC's on 620.5MHz, Seven's on 627.5MHz, Nine's on 648.5MHz, Ten's on 641.5MHz and (not on the screen shot) Prime's on 655.5MHz, NBN's on 662.5MHz and Southern Cross's on 669.5MHz.
If you're between transmitters it could be that your aerial/antenna is picking up just enough of the ABC mux you've added with the other transmitter's details but it's not a good enough signal for the others?
This page migh be useful to find your transmitter and its frequencies if its not Mount Tambourine - it lists neighbouring transmitters etc.
https://ozdigitaltv.com/transmitters/QLD/165-Mount-Tamborine
IT WOOOOOOOOOOOORRRRRRRRRRRRRRRRRRRRKKKKKKKKKSSSSSSSSSSSSSS!!!
I changed to all those frequencies and did another scan, and it seemed to populate all the muxes/channels okay. Went out to the telly to try it and the EPG was blank, as was the channel info for each channel in its tab. Bugger, I thought, but then I tried picking a channel and it worked. I had wondered if it was going to take some time to populate all the details and that's all it was.
As I watched a few channels, their info started to fill the appropriate boxes as did the EPG.
I'm just doing a bit of tidying up now, getting rid of the shopping & racing channels etc, but it's pretty much all done.
Thank you Thank you Thank you Thank you Thank you Thank you !!!!!