Mixed Signals

"Mixed Signals" is the second episode of the fourth season of The Flash, and the seventy-first episode overall. It aired on October 17, 2017.

Sypnosis
Barry has his hands full when he takes on a dangerous meta who can control technology, while also confronting an obstacle in his personal life; the ramifications of abandoning Iris for six months to balance the Speed Force. Meanwhile, Gypsy breaches in for a hot date with Cisco, but she gets annoyed when his work keeps them apart.

Trivia

 * Barry watches a sped-up version of all of his favorite shows in order to catch up. Amongst these shows includes Jon Snow from the TV series Game of Thrones dying and coming back to life, which occurred in the episodes "Mother's Mercy" and "Home", respectively.
 * Cisco likens Deacon's revenge spree to Richard Hendricks from the TV series Silicon Valley killing everyone in his company, Pied Piper. Barry suggests that he's more like Bertram Gilfoyle, though Cisco believes him to be more Erlich Bachman than Gilfoyle.
 * Cisco uses the expletive "frak" from the Battlestar Galactica franchise when Deacon locks him out of his own programming.
 * Cisco mentions how Earth Nineteen has Saint Shaquille O'Neal's Day, referencing the popular retired basketball player.
 * DeVoe claims to have completed Schubert's unfinished eighth symphony.
 * Barry's HUD display is brought up by lenses that go on his eyes. In the comics, when Wally was the Flash, he also had lenses similar to this. However they were white.
 * This is the fourth episode of the series to not feature Tom Cavanagh.