Mythbusters (8 p.m., Discovery) – Discovery’s longest-running series ends tonight, and it goes out with an appropriate bang. The guys blow an RV to bits; Buster goes supersonic; and Adam takes a wild ride that involves a cement truck filled with 5,000 pounds of ANFO. There’s a reunion show at 9, reuniting the five hosts one last time.
Nightmare Nurse (8 p.m., Lifetime) – After a bad accident, a woman’s boyfriend requires at-home care, and his attractive nurse seems perfect until her troubled past comes to light and the couple realizes she is trying to destroy their lives.
Dogs 101: Hero Hounds (8 p.m., Animal Planet) – In the spotlight are dogs that have saved their owners’ lives, including a little girl saved by a Rottweiler and a Labrador who saved a woman from the World Trade Center.
Saturday Night Live (11:30 p.m., NBC) – Jonah Hill hosts and Future performs.
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