Color was not the only new development in 1959. Toshiba in September demonstrated prototype helical scan model VTR-1, with 2-inch tape running at 15 ips over just one head. After the demonstration, Sony began to develop the helical scan VTR. Sony persuaded Ampex to share its VTR patents and Sony shared transistorized circuitry with Ampex. In1961, JVC (founded as the American-owned Victor Co. of Japan in 1946, but owned by Matsushita since 1953) demonstrated helical scan color VTR with 2 heads to compete with Sony's PV100 that was adopted by American Airlines in 1964 for in-flight movies. Helical scan technology held great promise for its potential to reduce the size of tape machines and permit slow motion and stop action effects, but not for another decade. The first "instant replay" on commercial television in March 1967 at the ABC "World Series of Skiing" in Vail, Colorado, was not by videotape but with the Ampex HS-100 color video magnetic disk recorder. Sony tried to develop a consumer VTR in the 1960s, but the open-reel machines were too large and complicated and expensive.
Instant Replay
