Works even better because the "OTA" basic Comcast isn't HD.
You need a CableCard, but you can get OTA channels in HD with basic Comcast service... although my understanding is there may be differences in some regions.
Don't bother. Some people will just keep screaming that electric will never work.
Don't confuse electric with batteries. I love the idea of electric, but I don't think (current, at least) batteries are the way to get there. IMO, history will show more negatives than positives with battery-powered cars.