Woohoo – old timer posts! ? Title – cards. Man, I remember those well. The first post house I worked at took this up a notch by creating retail disclaimers on 35mm slides. These were projected into a camera using an aerial image technique. This resulted in nice-looking, small text.
One of the important things about the Chyron design and font/size options was that they were designed to look good (and readable) in the world of SD interlaced video. For example, roll/crawl speeds were engineered to be smooth at NTSC and PAL rates. No infinite speed choice nor font sizes. Limited serif options. Earlier systems, like 3M’s, produced very DOS-like text (ugly). British developer Aston also made a very nice system. Much nicer font options than Chyron, but less popular in the US.
Seconded on the DFX! One of its strengths was internal 4:4:4 progressive processing, which resulted in the best blow-ups of that the era. Ahead of its time and a technique briefly adopted by the short-lived Media 100 844X.
All the best for 2021!