[trinescope]

In color sets the IF alignment places the sound carrier at minimum to avoid interference in the picture, then makes up for it with a sound IF amplifier stage. If the alignment were off, I could see potential problems with noisy audio. Color sets had to have video response to at least 4.1MHz for the color information, B&W sets could roll off response in the video amplifier and did away with some of the sound IF amplification used in color sets.