I can perhaps point you in the right direction regarding media players.. I checked on Newegg (as you live in the states) and they have several items which may help. This one:
Newegg.com - Hauppauge WinTV-HVR-950 with ATSC/NTSC Tuners USB TV stick - Retail
is like a USB stick but is actually a TV tuner.

This is a whole page full of TV tuners.. Again it's from Newegg, I think you can also get them in PCI so you won't have to worry about having a modern PCIE slot. Anyway here's the page:
Newegg.com - Computer Parts, PC Components, Laptop Computers, Digital Cameras and more!

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