Stefan Surmabojov show how to create a broadcast news style animation background loop in After Effects using simple tools like Fractal Noise and built in After Effects tools. Check out the Building Broadcast News Style Graphics in After Effects here.
from the tutorial description: In this tutorial we are going to create a professional looking broadcast background loop using only built-in tools within After Effects. You are going to see how to combine simple yet very powerful effects like fractal noise to create stunning designs.