In the first episode of season two we see a young boy running down the street while his paper boat is floating on the water in the gutter. The boy is wearing a yellow coat.
This same scene can be found in Stephen King's It (1990) (the mini-series), where the brother of one of the main characters meet Pennywise the Clown while playing with a paper boat in the gutter.
The episode's title is derived from Charles Dickens's 1859 novel A Tale of Two Cities.
The Season 2 premiere debuted at San Diego Comic Con as part of the Syfy Screening panel, two months before it was aired on television.