Hat tip to @mathew - I just learned that France had a graeter than 720i broadcast standard in the 1940s!
I gotta find some old french gear, I guess.
@ajroach42 wikipedia's write-up covers the basics (line frequency, bandwidth, etc) - not in any great detail, but given its dearth of external references, there just might not be much out there
@ajroach42 hmm. given that you don't have to worry about colour, i wonder if you could pull some cnlohr-like tricks to get a microcontroller to broadcast a signal to an 819-line set?
@millihertz @ajroach42 There are also more technical details on the French wiki page: https://fr.wikipedia.org/wiki/819_lignes
Basically, it says that the actual picture resolution would actually have been lower than 720p (but still higher than the 625-line SECAM color signal that replaced it). Furthermore, the public French TV archives (https://ina.fr) doesn't seem to be hi-def at all (or upscaled maybe?).
I guess @fenarinarsa may know a little about this topic?
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