I watched TOS in black and white on an old TV that sometimes filled the screen with static (we called it "snow"), and you'd have to beat on the case to get it to clear up. The show was still great! And I agree that the color version seemed almost too colorful, when I encountered it in reruns in the late 70s.
And don't forget you sometimes had to "fine tune" the channel (my B&W had a separate dial on the outside of the main dial for this), and you had to make sure the rabbit ear antennas were configured the best way for that station (or the omega-shaped or bow-tie shaped UHF antenna).
Our color TV had the "cadillac" of rooftop antennas -- it was motorized and could turn 360 degrees, all controlled from a box on top of the TV console.