Mick Rory is mentioned at the CCPD as being "off the grid", indicating that the police do not know of his whereabouts. Rory is currently a member of the time-traveling Legends of Tomorrow and not currently in Central City (nor in the year 2017).
When H.R. tells Cisco that they have Star Trek: Voyager (1995) on Earth Nineteen, Cisco replies that he hates spin-offs. This is an in-joke as The Flash (2014) is a spin-off of Arrow (2012).
Barry Allen was born on March 14, 1989; in real life, Grant Gustin was born on January 14,1990.
In high school, Barry was a huge fan of Dragon Ball Z (1996). However, Iris did not see the attraction.
Barry is revealed as 28 years old at this time.