The vertical hold didn't work well on our TV. You'd see the black band steadily grow and grow. Get the first roll...pause. Hoping it would stabilize.,,it never did. The rolling gets progressively faster.
And then dad would yell for one of us kids to adjust it and change the channel while we're at it.
My Nana used the smack the hell outta the side of the TV with a yardstick.
