You may view the full episode right here:
Adam West, Batman to a generation of TV fans, passed away last week. One of his final roles was a fittingly comic guest role on NBC’s Powerless in an episode which never made it to air. DC All Access is proud to present this episode in its entirety for a limited time as a tribute to West and his DC legacy.
For more on Powerless: http://www.dccomics.com/tv/powerless