I want to say I remember static between channels, but TBH it's been too many years to say for sure. My parents gave me a 12" black and white TV in the late 70s or very, very early 80s and I want to say it'd had static when switching channels.
I know, though, that I had to adjust the antenna for some channels. The knob did have specific stops, but you had to tinker with the antenna position for some channels.