100° Picture Tubes

[NewYorker]

Can anyone elaborate of the story behind 90°, 100°, and 110° CRTs?

Where there any real advantages of one over the other?

Also, I've been looking to collect some TVs that have 100° CRTs because they can be used with certain vector arcade games without the "pin-cushion" problem. TVs with these tube are extremely difficult to come by, but I've read that my best chance of finding one is if I search for Zenith TVs manufactured in the late 70s to mid 80s.

Nevertheless, I'd appreciate any additional tips on how to spot sets that have 100° picture tubes.

(I came across someone who posted an ad that said "Vintage zenith chromaclor se100 19inch tv". Would anyone know what the "se100" means?).

Thanks.

NewYorker