This is a paid asset, but now you can download Ultimate CRT Free.
Detail this asset from Unity Store: Original Link
Ultimate CRT v1.1.3 (Latest version)
Animated demos need a while to load up, be patient, please.
Ultimate CRT is a camera post-process script. With use of specially designed shaders it simulates all of the subtle imperfections of different cathode ray tube (CRT) monitors, such as lower sharpness, luminance bleeding, chromatic aberration, RGB channel splitting, different masks, color correction, curvature and more.
You have over 30 parameters at your disposal, so possible configurations are practically endless. Also to give you a head start, Ultimate CRT comes with 10 predefined CRT models – from monochromatic displays, through a kitchen TV, to a professional high-end CRT monitor.
Ultimate CRT have been tested on Windows, Mac OS X, Android, iOS and WebGL.
If you’re using Unity 5.6 make sure you’re using at lest the 5.6.0p4 version.
Unity forum thread
Features
1. Lower sharpness
2. Luminosity bleeding
3. Chromatic aberration
4. RGB mask
5. Noise
6. Various color adjustments
7. Interference
8. Shadow mask, curvature and vignetting
9. Adjustable internal resolution
10. Single- and multi-camera scenes support
Disclaimer
Screenshots from games Goblins 3 by Sierra On-Line, Bruce Lee by Datasoft, Moonstone by Mindscape, Fury of the Furries by Kalisto/Mindscape, Zorro by Datasoft/U.S. Gold as well as the Commodore 64 screenshot were used for demonstrational purposes only and are not a part of this package.