Upload & Sell: Off
The ONLY one you should even consider is the SiliconDust HDHomerun. It's about $50 on ebay. Has 2 tuners, does encrypted channels, and works with Windows Media Center. It's also network based, so it will work on any PC on your network.
their website says unencrypted only
Well, I'm using one right now on all the QAM256 channels that my cable company broadcasts. Perhaps they mean like, actually, encrypted? PPTV and such?
most cable companies encrypt almost everything other than the basic network channels and handful of others, it varies, you may be lucky and they left everything on clearqam, apparently it can be a weird mix, fios sometimes leaves some premium channels on clearqam (maybe because they can control per house the stream anyway?)