Does ATSC Tuners also receive and understand NTSC signals?
It has to have a separate conventional analog NTSC tuner as TVs always did to receive analog TV signals. In two years, the US Government says that there won’t be any more old analog TV station broadcasts allowed (only the new digital TV signals), so you won’t be able to use the old analog NTSC tuner TV sets to tune in Over The Air (OTA) TV station broadcasts any more. All TV sets sold after that time must have the new ATSC digital signal tuner. However the old NTSC analog TV sets will still tune any analog signals carried on your cable TV service.