Does anyone know of any good resources for approximating more (for want of a better term) analog glitch effects in code? The VHS and slitscan presets in Glitché

Does anyone know of any good resources for approximating more (for want of a better term) analog glitch effects in code? The VHS and slitscan presets in Glitché[0] got me wondering how one might go about producing the kinds of effects/artifacts commonly seen in scanography[1][2] and VHS manipulation[3][4]. [0] http://www.glitche.com http://www.glitche.com [1] http://instagram.com/p/i9wPGQGrkO/ http://instagram.com/p/i9wPGQGrkO/ [2] http://www.scannography.org/artists/Standke-Jens.html http://www.scannography.org/artists/Standke-Jens.html [3] https://www.google.com/search?q=glitch+vhs&safe=off&tbm=isch&tbo=u&source=univ https://www.google.com/search?q=glitch+vhs&safe=off&tbm=isch... [4] http://rob-sheridan.com/analog/one.html http://rob-sheridan.com/analog/one.html