Quoted from http://www.maximumpc.com/article/reviews/pinnacle_pctv_hd_mini_stick
Part of the size savings likely comes from Pinnacle jettisoning support for analog broadcasts. The HD Mini Stick can handle ATSC digital terrestrial transmissions and unencrypted cable transmissions in the ClearQAM format. We dinged the original HD Pro Stick for not having ClearQAM, but we think it’s a bit premature to zap NTSC. Sure, the feds will turn the lights out on over-the-air NTSC, but cable companies continue to broadcast NTSC and many people will still hook up their PCs to the cable at home.
Sadly, that makes the PCTV HD Mini Stick of limited value. Yes, you can use it to watch ClearQAM digital broadcasts on cable, but ClearQAM support by cable providers is spotty. Even if you can receive your local major broadcasters in ClearQAM on cable, what if you want to watch CNN or the Cartoon Network? With the PCTV HD Mini Stick, you’re out of luck.
Will I still be able to hook up and watch my VCR's channel 3 output?
I only bought this so I could capture my family home videos.