VIDEO: Here’s what some of the biggest fast food chains used to look like

This Tuesday, June 28, 2016, photo shows a McDonald's sign in Miami. Already, the emergence of smaller rivals promising more wholesome alternatives has major restaurant chains scrambling to improve the image of their food. But some of the tweaks they’re making underscore how far they have to go in changing perceptions. Convincing people it serves wholesome food is particularly important for McDonald’s, which has long courted families with its Happy Meals and Ronald McDonald mascot. (AP Photo/Alan Diaz)