There's nothing new about a television network posting a promotional video for an upcoming series on YouTube. But it isn't all that common for a video premiere to be timed to a press conference at one of the twice yearly Television Critics Association tours. That was the case during CBS' time at TCA on Monday when, just as a panel for the upcoming "Supergirl" was getting underway, a brand new video about the show was posted.
Video of the Week: "Supergirl" Touches Down at TCA
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