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Due to the different colour signalling, frame rate, lines and TV frequencies between US NTSC and International PAL broadcasts I don't think the LVW-5045's built-in tuner will be capable of tuning in PAL broadcasts. I would recommend giving it a try just for curiosity sake.
On the other hand, the LVW-5045 can be set to 'PAL' via the setup menu, which will allow the recording of external PAL equipment such as from satellite, a cable tuner, etc. Unfortunately, the only standalone TV tuner I'm aware of is the VCR, which means that if the main purpose of this DVD recorder was to completely eliminate the VCR (or avoiding the purchase of one), I don't think there is any other standalone TV tuner. If they have Digital cable (or a separate cable decoder), this would be the only alternative, but with the drawback of not being able to watch cable and record off another channel at the same time.