My parents are in assisted living and the only TV connection available is by coaxial cable. The TV is so blurry that it is driving my father crazy. The assisted living facility suggested setting it the TV to Cable Analog. I can't find this setting and I thought all broadcasts were in digital format anyway. I haven't been able to get anywhere trying to find out who the provider actually is or even whether it is cable or satellite so I can't talk to them directly. Can anyone suggest a way to get a better picture? Samsung UN55H6203AFXZA