Lassie was the creation of producer Robert Maxwell and animal trainer Rudd
Weatherwax and was televised on CBS from September 12, 1954, to March
24, 1973. One of the longest-running series on television, the show aired
for seventeen seasons before entering first-run syndication for its final
two seasons. The show was initially filmed in black and white and made
the transition to color in 1965. .