Question : Do you need an HDTV cable service in addition to a HDTV to get things in high-definition?
I mean.. For example.

I go out an buy an HDTV. Could I just plug my cable wire in, set it up etc, and watch TV stations that are in HD(sports on FOX, ESPN, etc.) — or do I need to get some kind of HDTV package or box from my cable company?
hdtv cable

Best answer:

Answer by Laissez-Faire Guy
It’s possible, depending on your cable company’s system.

I know on mine, Comcast, the HD channels are in the 700 – 800 block of channels, and you need a cable box to get there.

Again, depending on your cable company, you may need to pay extra, or not. Comcast used to charge an extra $ 5 a month for HD, but apparently don’t any longer because it’s not on my bill and my sister in law just got an HDTV and her cable box provided the HD channels to her just fine without any additional set up.

You can always hook up your TV to an external antenna and pull free HDTV from the thin air. Of course, that depends on where you live too.