576i hdmi output question

Hi! I noticed that there is an option to output 576i through HDMI on MUOS. I am curious what this is used for? Does this mean that you can output to a CRT with a proper adapter?

I think it was mainly used for PAL regions - for muOS it would mean games scale natively for PS1 PAL.

It is also one of the options from the HDMI output, on a hardware level, that these devices offer so I might as well add it.