How it Happens is a Canadian science television series which aired on CBC Television in 1973. Premise This series on science was geared towards youth, exploring questions such as how jet plane avoid colliding or how spaghetti is made. Scheduling This half-hour series was broadcast on Tuesdays at 5:00 p.m. (Eastern) from 23 October to 25 December 1973. It was rebroadcast in the same time slot from July to September 1974 and from July to September 1975. References External links CBC Television original programming 1973 Canadian television series debuts 1973 Canadian television series endings