A glitch is a short-lived fault in a system, such as a transient fault that corrects itself, making it difficult to troubleshoot. The term is particularly common in the computing and electronics industries, in circuit bending, as well as among players of video games. More generally, all types of systems including human organizations and nature experience glitches.
A glitch, which is slight and often temporary, differs from a more serious software bug which is a genuine functionality-breaking problem. Alex Pieschel, writing for Arcade Review, said: "bug” is often cast as the weightier and more blameworthy pejorative, while “glitch” suggests something more mysterious and unknowable inflicted by surprise inputs or stuff outside the realm of code."
In broadcasting, a corrupted signal may glitch in the form of jagged lines on the screen, misplaced squares, static looking effects, freezing problems, or inverted colors. The glitches may affect the video and/or audio (usually audio dropout) or the transmission. These glitches may be caused by a variety of issues, interference from portable electronics or microwaves, damaged cables at the broadcasting center, or weather.