In 1984, Hasbro and Takara-Tomy released The Transformers upon an unsuspecting world, and this six-year-old was hooked. Led by Optimus Prime, a red and blue cabover Peterbilt semi truck that turned into a friendly alien robot, the Autobots had to defend Earth from the evil Decepticons. At least, that was the case until 1986 when The Transformers:

Source: Hot Hardware – Hasbro’s Programmable Optimus Prime Auto Transforms For Sweet 80s Kid Nostalgia