It's a bit of a mystery why there's still so much banding in TV & web graphics. Maybe people can't preview in the appropriate color space or codec to see banding, which may be eliminated by adding a Noise filter at about 5% (maybe on an adjustment layer). The stuff on cable systems is subject to God knows what compression and recompression, so being conservative with gradients may be the better part of valor.Some other workarounds (creating gradients, TV vs. web) were discussed by Greyscale Gorilla in 2009; see How to Remove Banding Artifacts in After Effects:











