First let me explain the difference between a new DIGITAL antenna and an old ANALOG antenna... THE PRICE.. There is no such thing as a "Digital" antenna.
THe King is also not as good as the Wineguard Sensar line. IN case that is what you replaced.
Your Old Analog TV will work with tne new antenna exactly as it worked with the old.. NOT AT ALL. unless you are in one of the rare areas where there is still an analog station (not many remain)
YOu will need a digital to analog converter. I can not recommend one as I have 4 different ones and they all work much the same.