What is the process for generating modelines specifically to match a CRT tv's

[esc5879]

I was directed to here, however I don't know if I'm allowed to ask her because I'm using Batocera with CRT Script, not Groovy Mame or CRT Emudriver but maybe similar applies.

While I've gotten into installing crt script for Batocera to use with my crt tv for a long while now, I still have zero experience with this part of pc crt emulation set ups.

I've had issues with interference, and I'm starting to realize it might be because I have things configured wrong with the crt tool I used to configure it.

And now I'm just hearing about the idea of "generating your own modelines" to match your exact CRT TV's specs.

How exactly does one do this? My crt tv is the panasonic ct-27g24a. What is all the information that I need about my tv to do this? And when I have all of that, how exactly do I "make modelines" to match it?

I have no idea how to even search for tutorials because I don't know what terms to search in and I did try before posting here. So if you know any tutorials on all of this feel free to share with them as an answer.