But my mother had a HDTV Flat TV but it wasn't digital so we had to get a converter box. It was long after the major switch to digital and it was hard to find a box. Hook up an antenna and try it first before buying the box. You know you would just be able to get your local channels. And the OTA (over the air) HD is even better than cable HD. Sometimes I even switch to Antenna HD instead of my Comcast cable box.