Question How to create an old school TV turn off effect

Hi!
New to Unity here, as said in the title i'd like to create that kind of effect in my 2D game when my plants die :

There is no tutorial available, where do you think I should start ? Would it be a sprite effect or more of a shader ? How would you do that ?
Thank you !

 

I'd recommend just playing an image animation of the effect by:
- Exporting a GIF/Video of the effect into multiple images
- Importing into Unity as Sprites
- Use a UI Image and create a new animation which goes through each frame (there are also plugins that let you apply GIFs directly, saving some tedium)
- Setting the image to active and triggering the animation when desired (this might be helpful How to make AWESOME Scene Transitions in Unity! - YouTube)

I had a similar effect in my recent project and that's how I went about it.