cyclops, n. — Green’s Dictionary of Slang

cyclops n.

[proper name Cyclops, a one-eyed giant who, in Greek mythology, forged thunderbolts for Zeus. A television, too, has ‘one eye’]

(US black) a television.

1967–8		Baker et al. CUSS.
1972		D. Claerbaut Black Jargon in White America 62: cyclops n. a television set; TV.