The US military developed the internet in the 1970's to see if giant computers could share research. They discovered the potential for mass communication, and soon the computer software industry exploded.
With the internet the world's media are instantly and continually available worldwide.
The television came to UK around 1930, and was soon developed in other parts of the world. The televisions visual effects made the viewers feel closely connected with the hosts and the actors.
On television you could see soap operas, game shows and advertising. The broadcasts remained local and regional.
The technology made it possible to use photography in magazines. The "Illustrated London News" in 1842 was the first to publish a magazine with photography.