The "Big Brother" easter egg is when you change a display name (such as screens or TVs) to "Big Brother", you are able to have live video streams from things like security cameras, habitat web cameras, and animal burrows. This is a really cool feature, and really annoying that it is behind an easter egg when otherwise those camera views are pointless. We are also only limited to 4 unique camera views per zoo save file. I can understand wanting to limit things for performance sake, but I'd love to see this limit upped to something like 10-15. It allows the bigger zoos to have more unique displays for hidden away areas or to help with shy animals. Having this feature fleshed out could really help with zoo immersion and creativity!