Monday 8 p.m. (Pacific Daylight Time, check local listings for time)
National Geographic Channel
Cosmos: Possible Worlds (cc) Ladder to the Stars (Season Premiere) An adventure spanning billions of years into the evolution of life. (s) (N)
After a lengthy hiatus, host Neil deGrasse Tyson returns with more dazzling out-of-this world trips through space and time as Season 3 opens with two new back-to-back episodes.
