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Hi, I'm Carl and welcome to Just Answer. I am reviewing your question now and will reply to you within a couple minutes.
The issue here is that you have a USA Tuner Card and Firmware and you're attempting to scan and locate Fiji based stations. This simply doesn't work; You will need a Freeview Box from Fiji and connect your antenna to it then to your TV.
If you need any clarification or additional help, please feel free to ask me.
Yes it would as Fiji uses PAL B just like Australia and surrounding Oceania.
I would also suggest resetting the TV and selecting a region Country that best fits yours using PAL B.
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