Chromatic Aberration
In optics, chromatic aberration (abbreviated CA; also called chromatic distortion and spherochromatism) is a failure of a lens to focus all colors to the same point. It is caused by dispersion: the refractive index of the lens elements varies with the wavelength of light. The refractive index of most transparent materials decreases with increasing wavelength. Since the focal length of a lens depends on the refractive index, this variation in refractive index affects focusing. Chromatic aberration manifests itself as "fringes" of color along boundaries that separate dark and bright parts of the image.
It's the green/red hazy halo effect you see in a lot of modern games at contrasting points, and a lot of old VHS recordings (that's not actually CA, but it looks the same). It's just the worst. Games use it a lot now to hide shitty AA or because shitty artists think it looks adds to their art style (it doesn't)
I feel bad here though, he's trying to recreate a specific look in-game, literally of a broadcast picture into the game and honestly he's getting close. I'm kind of liking seeing the progress as I like to tinker with Reshade as well. Reshade is pretty limited in the effects it can inject and CA is one of the few effects available that can effectively do a blur effect that increases as you move away from the focal point without looking like a tilt-shift type effect. For my photo effect in Pcars2 I used DOF instead of CA but if I were to pull out far it would make everything look like miniatures. The problem with CA is it's really irritating to look at which is why it's so universally panned. I think it wouldn't be so bad if I were colorblind.