Blue Beetle from JLA Makes Fun Of Batman from B:TAS (Justice League Action)
While tracking Chronos, Batman and Blue Beetle find themselves in the past, at the scene of Batman's first investigation. Includes references to the older Batman shows/comics with the pointed cowl ears, black undies style costume, the lack of the grappling gun, the red sky with lightning, and most importantly the classic quote.
Source: Justice League Action, Season 1, Episode 6, "Time Share"
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