Another update: The cable company came out to our house on Friday to install a filter on the cable. I guess they don't want you watching what you aren't paying for.
Anyway, after they got that done I couldn't help myself...I hooked the cable back up to our TV and did a channel scan on all frequencies. To my surprise it picked up all of our local stations as digital channels. The picture quality isn't as good as my antenna, but it is much better than analog cable. Apparently they are required to pass the local broadcast stations to you even if you don't subscribe to any cable channels? I get a few PBS stations out of VT with the antenna that didn't show up on the cable, but for someone who just wants high speed internet and a few local channels, a channel scan is all it takes. Some friends of mine have the same internet service, and they live in an area that makes it tough to pull in any stations with an antenna...I'm sure they will be thrilled to pick up 4-5 channels with no fuss or extra equipment.