digital to analog

[DaveWM]

I know when I tune thru the uhf and some vhf bands on my old sets I get what I presume is a digital signal (noise both audio and video).

I wonder if a digital to analog converter could be built that would look a the IF signal and convert it back to analog installed in the tuner link (tuner to IF connection).


I guess this is a kind of silly proposition since it assumes NTSC, so the conversion would have to be more complicated. Not enough coffee this morning.