Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

[Q]: On September 9 , 2015 , Apple announced the 4th generation Apple TV , to ship in October 2015 . It is the first major update to the platform since the release of the 2nd generation Apple TV on September 1 , 2010 . Tim Cook took the stage and said `` The future of TV is apps '' . He also stated that the Apple TV needed a modern OS . While matching the form factor of the 2nd and 3rd generation models , it is significantly taller . The 4th generation Apple TV features a new touch remote allowing swipe - to - select functionality instead of the old remote 's arrow button , and integrated Siri support with a built - in microphone and an accelerometer ( IMU ) . The Siri button on the remote allows several functions , including searching across providers for content , accessing additional metadata and video / audio controls .
[A]: Apple TV


[Q]: Cerebrospinal fluid ( CSF ) is a clear , colorless body fluid found in the brain and spinal cord . It is produced by the specialised ependymal cells in the choroid plexuses of the ventricles of the brain , and absorbed in the arachnoid granulations . There is about 125mL of CSF at any one time , and about 500mL is generated every day . CSF acts as a cushion or buffer for the brain , providing basic mechanical and immunological protection to the brain inside the skull . CSF also serves a vital function in cerebral autoregulation of cerebral blood flow .
[A]: Cerebrospinal fluid


[Q]: In Greek mythology , Theia ( / ˈθiːə / ; Ancient Greek : Θεία , translit . Theía , also rendered Thea or Thia ) , also called Euryphaessa `` wide - shining '' , is a Titaness . Her brother / consort is Hyperion , a Titan and god of the sun , and together they are the parents of Helios ( the Sun ) , Selene ( the Moon ) , and Eos ( the Dawn ) .
[A]:
Theia