The first practical television was invented by John Logie Baird in 1926. He demonstrated the first public television transmission in London, showing ventriloquist's dummies moving in real-time.
Baird's invention revolutionized entertainment and communication. His early TVs were massive and used mechanical scanning to display images. It wasn't until the 1930s that electronic TVs became more widespread, paving the way for the modern TV we know today.