Any Zenith history websites?

I've tried seaching all over the web and can't find any sites specific to older Zenith TVs. Anyone know of some?

Would love to find at least a pic of the sets I grew up with. Smaller B&W portables 12" to 17" or so.

One in particular sticks in my gooey mind....either late 50's or early 60's with a strange checkerboard channel indicator. As you changed channels the channel number would pop up and then disappear in successive clear windows within the checkerboard pattern adjacent to the tuner knob (I think this was a VHF only set).

Does this sound familiar to anyone? Thanks

Anthony