Mechanical televisions, which used a revolving disc with holes organised in a spiral pattern to scan images, were the first.
Baird Televisor, which debuted in 1930, was first commercially available mechanical television, with 2-inch by 2.5-inch screen: black and white images
In 1934, RCA introduced the TR-1, the first electronic television, revolutionizing the industry with its 5-inch screen & black-and-white resolution.
In 1950s, transistors television, introducing smaller, more affordable models: Sony TV8-301, first transistorised television with an 8-inch screen.
Today, television technology advancements led to smaller, thinner & sharper versions with capabilities like colour, high definition & streaming video.
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