Freebase(0.00 / 0 votes)Rate this definition: Campestre is a municipality located in the south of the Brazilian state of Minas Gerais. Its population is 24,481 and its area is 54 kmÂ².
Also, there was Philo Farnsworth, a west-coast inventor whose first demonstration of television was in 1927. Like Baird's system, it was electro-mechanical, but by 1929 he had eliminated the moving parts of his system to create the world's first fully electronic system.
When did the first led tv come out. kgb answers Â» Arts & Entertainment Â» TV Â» When did the first led tv come out. The first practical visible-spectrum (red) LED was developed in 1962 by Nick Holonyak Jr., at GE. Tag: ge. Wednesday, February 01 2012.