If there's one thing that Sony knows how to do, it's to make great commercials and really drive the legacy of the PlayStation brand.Last week, in celebration of the PS4's launch, Sony released their "4ThePlayers" ad that celebrated nearly two decades of PlayStation history, and now has released a neat interactive version on the official PlayStation YouTube account that might be quite the challenge, even for the most avid PlayStation fans.The interactive "4ThePlayers" ad allows you to pause the video and search for hidden PlayStation easter eggs that, when clicked, take you to trailers or other info about their respective series or where they come from in PlayStation history. What happens if you find all 50? Who knows...You can check out Sony's interactive 4ThePlayers ad by following the link in the tweet below: