Truth and Lies: The Family Manson (9 p.m., ABC) – An ABC News special examining the two consecutive nights in Los Angeles in 1969 when followers of cult leader Charles Manson murdered nine people, including eight-month pregnant actress Sharon Tate. Includes interviews with Manson and former cult members Leslie Van Houten and Patricia Krenwinkel.
Also on . . . .
The Originals (8 p.m., The CW) – In the Season 4 premiere, Marcel – now king of the city – welcomes the un-sired vampires to New Orleans, only to find they pose a threat to his rule.
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Sleepy Hollow (9 p.m., Fox) – A mysterious woman finds her way into the vault, so the team tries to find out who she is and where her allegiances lie.
Reign (9 p.m., The CW) – Lord Darnley must demonstrate his loyalty to Mary when she voices her concerns about his true intentions.