Looks like Hauppauge quietly went and released a hybrid NTSC and ATSC TV tuner for PCs. And don't it look to be from the same OEM'er Elgato's been kicking around with? The WinTV-HVR-950 hybrid TV stick supports up to 1080i ATSC digital or analog NTSC TV broadcasts when slotted into your USB 2.0 port and ships with Hauppauge's WinTV-Scheduler and the WinTV2000 application to watch and schedule TV recordings to MPEG-2. No word on pricing or availability but we have a sneakin' suspicion it'll cost ya about a Benjamin.
Update: Damn we're good; the word direct from Hauppauge is that this little dongle will set you back exactly $100.