Is there anyone in Hobart who could spare 1/2 hour to reimage a drive for me please?

I brought a TiVo over (from NZ) for my parents-in-law, and had it set up but managed to stuff it (selected clear and delete all). They only have Macs (and my laptop) so I have no way to reimage the drive.

The TiVo is stuck in a reboot loop (reboots before network drivers loaded) and I left my serial cable at home.

Can anyone help please? I'm here until 2nd Jan.