Yeah, I'm pretty sure that I'll require a converter box if I want to access digital signals. I wasn't thinking of using the DVD player as an intermediate solution; I don't think it even can be.
As for using my rabbit-ears antenna for digital signals, again I don't think that's possible. They wouldn't pick up the signals, at least from what I understand.
There were/are a lot of converter boxes around in the US, but it's a pain to ship transborder. LG and RCA (Thomson) are two that come to mind and which might become available in this neck of the prairies.