[Adam]

My 1960 17" b/w Zenith SC300 in the metal cabinet still has the vhf knob. And I used to have a 1971 19" Zenith b/w in the plastic cabinet with the space commander that had both vhf and uhf knobs.
That's a nice looking cabinet, maybe you can find a similar Zenith set in a less desirable cabinet, and swap the chassis and crt. That's a neat set too, probably the latest model set I would really like to find.