In the 1960s, Sony and Philips developed helical scan VTRs that were less expensive
and even portable. The Sony CV-2000 (1964) was the first VTR marketed for
consumer home use. It used half-inch tape reels and only recorded in monochrome
using a skip field scan method that reduced both cost and quality. However, these
machines were popular for industrial and educational applications
$60.00
LaserDisc (LD) is a home video format and the first commercial optical disc storage
medium initially licensed, sold, and marketed as MCA DiscoVision (also known as
simply "DiscoVision") in North America in 1978
$30.00