Thank you for using Season 4 question in the title!
We do have a rule about spoilers which should not be talked about outside of their thread or season! You can also use SPOILER SPACE or spoiler cover to mask a question asked about a season ... I will type what to use in red. Start by typing [ a right bracket, the word spoiler and a left bracket ] . Enter you spoiler (which will be covered when you submit your comment) and then type right bracket[ and then /spoiler followed by a left bracket ] . It should look like this:
Hmm, I never heard those. It's interesting to find out what an episode was going to be called. I don't see how Entity is related to 'Child's play' perhaps they were going to do something but the story took a different direction & therefore the intended title no longer fit?