Philo Farnsworth invented the cathode ray tube. unless you're writing this from the year 2009 or before, I'm going to have to push back on the idea that tv's TODAY are based on his technology. They most certainly are not.
https://en.wikipedia.org/wiki/Kenjiro_Takayanagi
'Although he failed to gain much recognition in the West, he built the world's first all-electronic television receiver, and is referred to as "the father of Japanese television"'
He presented it in 1926 (Farnsworth in 1927)
However father of television was this dude:
https://en.wikipedia.org/wiki/Manfred_von_Ardenne
Better resolution, wireless transmission and Olympics 1936