There are numerous differences between television and radio, namely that television broadcasts transmit images and sound, whereas radio broadcasts only transmit sound. The success of radio catalyzed a race from investors to research and develop the more advanced broadcast system of television.
Another big difference between radio and television is how advertisements are run on the two different mediums. Radio advertising may be as simple as being read by the disc jockey between segments, while television advertisement is considered the pinnacle of advertising for many businesses.
Radio was patented simultaneously in 1837 by U.S. Inventor Samuel F.B. Morse and British scientists Sir Charles Wheatstone and Sir William Fothergill Cooke. Radio was first broadcast in the early 1900s. The invention of television was a collaborative process between German Inventor Paul Nipkow and Scottish Scientist John Logie Baird, who broadcast the first televised image in 1926.