Its a VERY bad idea to buy a country-specific recorder (i.e. anything with a "FreeView" digital tuner) thinking you will use it in the USA or Canada. Using a voltage converter might be necessary, and those aren't really meant to power advanced electronics like a DVD recorder. Such models are usually optimized to record in PAL and will only play NTSC DVDs, they often can't record NTSC from line inputs. The tuners are absolutely useless in North America. Finally, many here who tried your idea discovered there are mfr trade restrictions preventing European dealers from shipping to North American buyers. You would actually have to go to Europe, buy the recorder, and ship it to yourself.
If you want a new DVD/HDD recorder, there are only two practical choices for North America. The current Magnavox 513 or 515, or the upcoming 533-535-537 series, are the better choice for off-air broadcasts with their nice 16:9 digital ATSC tuners. When used with cable, they can be mildly to severely problematic. Cable/satellite subscribers, or those who want a more elegant recorder with more refined editing features, should opt for the "tunerless" import Panasonic EH59 or EH69 (these are like the European FreeView recorders you covet, but without the useless tuner and with multivoltage power and NTSC-selectable recording mode).
The fancy FreeView DVD/HDD and BD/HDD units are being phased out as we speak, Panasonic was the last name brand but has begun winding down production, so this "recorder envy" issue will become moot within a year anyway. European consumers are now following the American trend towards HDD-only non-disc recorders.