Odds are RCA or a clone. Zenith wasnt in color yet. RCA was
a huge company & had everything to do it from content ( NBC )
though the TV. In the CRT days 40% to 50% of TV's were split
between Zenith & RCA evenly. Zenith always sold a few more
both color & B&W. Big rivalry.
73 Zeno
LFOD !