Glitch:

A late-night ad for FLAWLESS, "the screen that never glitches", until a gremlin moves into the signal. Every artefact is computed live: torn slices, colour split, tape tracking, macroblocks, pixel sorting and a real datamosh that drags old pixels along new motion. Hover to attract the glitch, drag to turn the hold knobs, and smack the TV when it misbehaves.