Who Killed JonBenet? (8 p.m., Lifetime) – This new movie is based on the true story of the unsolved murder of six-year-old JonBenet Ramsey in her Colorado home in 1996. Payton Lepinski plays JonBenet. The movie is followed by a two-hour special delving into the possibility that JonBenet’s mother, Patsy, might have been the killer.
Karen Carpenter: Goodbye to Love (9 p.m., Reelz) – A look at singer Karen Carpenter’s life and legacy through interviews with close friends.
Saturday Night Live (11:30 p.m., NBC) – Benedict Cumberbatch is the host, and Solange performs.
Austin City Limits (Midnight, UNC-TV) – Performances by Grammy winner Natalia Lafourcade and Latin funk orchestra Grupo Fantasma.
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