Fantastic article, I’m bookmarking this. Recently I learned that an older video game console, the Nintendo 64, would generate 480i interlaced video signals fro

Fantastic article, I’m bookmarking this. Recently I learned that an older video game console, the Nintendo 64, would generate 480i interlaced video signals from a 240-row framebuffer by following exactly these recommendations—the alternating 0.25, 0.75 weights applied to each row. The way interlacing works, you’d end up with [0.25, 0.75] for one field and then [0.75, 0.25] for the other field. Some other consoles did not address this issue and fine lines would vibrate up and down. (You could also put the N64 in “interlaced mode” and generate a proper 480i signal instead of asking the hardware to upsample a 240p buffer, but the performance requirements were very strict and the hardware was not very powerful.)