The Flash
Alley near S.T.A.R. Labs
One month after the S.T.A.R. Labs explosion RonnieStein wakes up in an alley in episode 1x13 “The Nuclear Man”. Barry arrives in the future and is almost immediately attacked by Mirror Master and Top in episode 3x19 “The Once and Future Flash”. Nora and Barry land after their uncontrollable fall through time and find themselves next to an unconscious earlier version of Barry who has come back to get Thawne's help in episode 5x08 “What's Past Is Prologue”.
The Flash Signal
Barry uses a spotlight with the Flash symbol to attract the attention of the Atom Smasher in episode 2x01 “The Man Who Saved Central City”.
Source: YVRShoots