Hi @crystal1995 In theory the Fetch Tv should work on TPG nbn, it's a streaming device that you will still need a subscription to Stan and Netflix for.
I can confirm that similar devices such as Telstra TV and Apple TV work no problems so the Fetch should be no different.
Welcome to the Community!
Are you having issues with your Fetch TV?
We do not offer this type of service however if you are already subscribed to one, it should work as normal since it only require a constant internet connection.