If your problem is you don't have an aerial and you have home broadband you could think about streaming live tv using the Freeview FV app and caring to your tv using Chromecast or a similar casting dongle
Thanks for your reply. It turns out it is possible. I reset the Mini back to factory settings and got it working. There is a couple of seconds delay for it to 'load' but works reallt well. If you look at the Fetch multiroom guide (not the Optus one) it is referenced in there.
Wow, I've learned something new today with fetch mini sharing the FTA signal via a Fetch Mighty/Gen2 box. To be fair to @Davelew the Mighty/Gen2 box must be connected to the antenna in the first place. So if you don't have an TV antenna any where in the home, then FTA sharing wont work.
Here is the link for reference (pp10)