The 1970s was a period when video recording became a major contributor to the television industry. Like many other technological innovations, each of several companies made an attempt to produce a television recording standard that the majority of the world would embrace. At the peak of it all, the home video industry was caught up in a series of videotape format wars. Two of the formats, VHS and Betamax, received the most media exposure. VHS would eventually win the war of, and therefore succeed as the dominant home video format, lasting throughout the tape format period.
Info gleaned from Wikipedia