The phrase "entering the twilight zone" is being used in various contexts, including references to the classic tv show and its creator Rod Serling, as well as events and locations in different parts of the country. It appears that some outlets are using the phrase to promote events, such as a live comedy show and a virtual lecture about the deep sea, while others are discussing the tv show itself. The meaning and application of the phrase seem to be being used in different ways across different outlets.