[captainmoody]

Looks like a 1981 model, It also has space phone and it is an infrared remote set. BTW, 1980 was the last year for ultrasonic remote for this one.
Zenith had 1 year that was unique for this model and it was "81.
The other was in 1977, that had the CCII chassis, in "78 they went to the Sys 3.
I have seen and owned a lot of this type, The oldest I had was from 1977 and was a chromacolor II The newest looked exactly like this one and was manufactured in june of 1981.
The two I presently have are 1979 models with ultrasonic remote and what Zenith called "high performance television sound"
Yes, They have the "dreaded" 9-160 modules, I don't mind them though, They are easy to repair and pretty reliable once gone through.
There were very many of these sets sold in this area and I still find at least 1 or 2 every year on the curb during garbage day.