Timeless kicks off with a bold move: Garcia Flynn (Goran Visnjic) a terrorist steals a time machine and heads back to the day the Hindenburg crashed. Three people – a historian, Lucy Preston (Abigail Spencer) a Delta Force soldier, Wyatt Logan (Matt Lanter) and a pilot, Rufus Carlin (Malcolm Barrett) – are send back to stop him. They are not completely successful.
Extant (Wednesdays, 9/8C) is the new big summer series for CBS. It makes much of two unaligned ideas – astronaut Molly Woods returns to Earth after a thirteen-month solo mission, pregnant; her husband, John Woods, has developed an artificial intelligence in human form called humantics (human-robotics, get it?).