Funny as hell, the spellchecker here doesn't like Kinnescope or Chyron.
Doesn't much like Kinescope either - I've usually seen it spelled with one "n" - more efficient.
Back then the secretary with a dictionary was the spell checker.
Speaking as an ex-secretary, I can tell you we didn't need no stinking dictionaries. Well, maybe rarely, or when starting to work in a new profession (e.g., medical secretaries had to know how to spell a very specialized vocabulary). But, as a secretary, you'd best be able to spell things right, or think about a new career.