pp for TV anime: fix field shift, fix RGB plane shift, deblock/denoise, deband, add grain. pp for movie: dering, fix chroma shift, deband.
problems of Bonus: all kinds of interlaced shits(combing, telecine, interlacing resizing/field phase shift, field shift, field blending, chroma upsampling error--and hybrid of these), dot crawl, rainbow, RGB plane shift, chroma shift, ringing, blurring, aliasing, blocking, haloing, banding... A few days ago, I thought I have already done my best to deal with those shits... But, today when I played those encoded files and... yooooooooooooooo, WTF is this!? It's highly recommended that you should only watch these Bonus in still image, which will look more like shits than ■■■.