Why some consoles need a framebuffer on flat-panel TV’s

Displaced Gamers has once again released an amazing video describing exactly why some consoles like the Atari 2600 don’t play nicely with flat-panel TV’s.  The question is simple:  Why do some 2600 games, as well as some SNES games not work through the OSSC or RT5x in framelock mode on certain displays and capture cards?  The answer is much more complicated…

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Overall, CRT’s were very forgiving displays.  As long as the signal is sent at the same refresh rate all TV’s were designed to handle, an image would be displayed.  On top of that, what we know as “240p” was never an official video standard – It was basically a “hack” that allowed a progressive scan image to be displayed on a CRT that would normally present interlaced video images.  This didn’t matter in the CRT era, but now that TV’s adhere to strict video standards, sometimes the video signal from older consoles needs to be buffered and adapted to something these newer panels can handle.

While this isn’t a “beginner” video, I’d strongly recommend giving it a try.  The explanations and demos perfectly describe the issue and will give you a much better understanding of why retro gaming scalers are such amazing and complicated pieces of equipment!

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