KOMO-TV Channel 4, Seattle WA
Sign-Off recorded circa 1986

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Graphics, design and description copyright 2018 by J. Alan Wall. All rights reserved.

A very brief sign-off of Seattle's long-time ABC Network affiliate, running only about thirty seconds in length. Just a shot of the Seattle skyline at night, then several seconds of black before the transmitter is cut off. Though KOMO-TV came on the air initially in December 1953, the AM radio station that spawned Channel 4 did some experimenting with TV some 25 years before. On June 3, 1929, KOMO radio engineer Francis J. Brott televised images of a heart, a diamond, a question mark, letters, and numbers over electrical lines to small sets with one-inch screens. A handful of viewers were captivated by the broadcast. The Webmaster assumes that a mechanical "Nipkow disk" scanning system was employed in this experiment.

NOTE: The video files featured on this website are taken from my VHS home recordings of over-the-air and cable video captures, clips contributed by others and clips downloaded from YouTube and similar sites. The quality varies from clip to clip, due to TV reception and recording issues. None of the clips that are featured here have been authorized by the various television stations, networks or any other entity.