There were a few (VERY few) North American models about six years ago that could network to a PC and transfer their HDD video files in a reasonably convenient manner. But they had analog-only tuners, and were invariably either brands that were not that desirable (LG) or brands that were known to self destruct on the 91st day after purchase (Toshiba). Availability of PC transfer features was a little more common with PAL recorders sold in the European, Australian and NZ markets- but even there, it was not a widespread option. A couple of the top-line Panasonic PAL BluRay recorders had/have USB transfer features, but it tends to be restricted to DiVX files and doesn't really work with the recorder HDD files. Most of these units merely offer the ability to hot-swap external USB storage, with little flexibility: any external thumb drive or HDD is formatted for the recorder OS and is usually "registered" (i.e. locked) to that specific recorder (drives are not "portable" between different units or a PC).
Everybody wants unfettered PC transfer capability, but its rarely been offered: when it has, its always been questionable recorders no one really wanted to buy. We're spoiled now by PC video, so its difficult to remember just a few years ago what a magical marvel the basic DVD/HDD recorder was, compared to direct-on-DVD recorders or VCRs. These things were intended to make DVD libraries, essentially they were a more flexible digital version of the VCR. In order to be sold in the first place, they had to pander to the fears of copyright holders, so direct file transfer to PCs was intentionally left out. They knew they couldn't stop you from ripping your burned DVDs to the internet, but gambled most people wouldn't bother with all the converting nonsense: their primary fear was instant uploading of pristine TV shows from recorder to file host sites.
So, no, you won't find this ability in any recent or current NTSC recorder, and if you want a digital ATSC/QAM tuner the only DVD/HDD units available are the Magnavox recorders (actually, they're the only DVD/HDD recorders still marketed in North America, period). DVD/HDD recorders are all but dead as a consumer product, indeed partly because people were frustrated they couldn't do PC transfers. Thats why this AVS DVD recorder forum is getting very, very slow: you either love the Magnavox, or you've moved on to a full-blown PC-based recorder system with total control over files and media (or TiVO>PC combo). There really aren't any other choices, and haven't been since the ATSC tuner regulations went into effect in late 2006.