http://en.wikipedia.org/wiki/PSX_(DVR) Bit of a long stretch, but would it be possible to get it to pick up or record TV outside of Japan? (I live in a PAL TV broadcast country).
I have a feeling that it won't unless Japan and Aus use the same signal...which I highly doubt. It also don't think it will output a PAL signal compatible to PAL without a converter. But don't take my word for it, I really don't know exactly. If that's all you want it for (aside from the cool factor), just pickup PlayTV for the PS3, does the same job.
Funny you should ask this. I don't actually own the PSX but a couple of weeks ago I asked someone from the UK this question on youtube who did a video of the PSX. http://youtu.be/8Ytmmo0_A1M I don't know how accurate it is, but you can see from the video he recorded another console using the PSX. I can't remember who it is, but I remember talking to somebody else about it also in the UK and they said it recorded analogue tv fine, until they turned it off in his area. Sorry I can't give anything more concrete.
Is aus all digital? If so you would need a converter. I wager what's inside that psx is an Analog receiver and that from what I've read it won't work. Keeping in mind fake videos are very easy to make.
From the sound of it it acts like a generic video recording device now. Sucks but it was bound to happen eventually. Hence why I've been buying Tivos for $5 a pop for their tasty IDE drives.
