The prefix "Mc" has become synonymous with the world's biggest burger chain. It's not just in the name of the company.

McDonald's has used arches branding for a product in the past, and it didn't go well. It launched the Arch Deluxe in 1996, and the product flopped. The burger, intended to appeal to more ...

In 1991, McDonald's released a low-fat burger called the McLean Deluxe. Commercial: Introducing McLean Deluxe, made with a 91%-fat-free beef patty. Narrator: Ninety-one percent fat free.

Not that it had not faced its share of challenges, however. In 1996 McDonald's responded to one such challenge (a sales slump, compounded by the perception that it needed to develop a dinnertime ...

So, on a recent trip to South Korea, I stopped by a McDonald's with a colleague to try the Bulgogi Burger, McSpicy Shanghai Deluxe, 1955 Burger, and Deluxe Shrimp Burger. Produced by Will Wei ...