I'm a little confused about "digital-to-analog converters". I have one TV that's HDTV Ready (no digital tuner), and not connected to cable service. I know I'll need a dtv converter for sure for it, but I want to know if there's a digital converter that will work with cable should I decide to route (or hire the cable company) wire over to it and connect it to my cable service.

What's confusing to me, is that one of my digital TVs are connected to cable right now, and is able to receive HDTV signals, even with out a converter box from the cable company. So I want to make sure that if I get a converter box for my HDTV, that it'll also be able to work like my digital TV.

Hope this makes sense.