This first video is for the Through the Wormhole. The rest are meant to supplement your interest or provide other explanations.
Through The Wormhole: The Riddle of Black Holes
Black Holes (BBC)
Cosmic Journeys: The Largest Black Holes in the Universe
Who’s Afraid of a Big Black Hole?
How to Time Travel
Einstein-Rosen Bridge
Michio Kaku – Physics of the Impossible – How to Travel Through Time
Michio Kaku – Physics of The Impossible – How to Travel to Parallel Universe