The Biggest Loser: Glory Days (8pm, NBC) - Season 16 starts with twenty former athletes – including NFL players and Olympic gold medalists – beginning their weight-loss journeys. The athletes will work with new trainers Jessie Pavelka and Jennifer Widerstrom, as well as veteran trainers Dolvett Quince and Bob Harper. Alison Sweeney will return as host.
The Quest (8pm, ABC) - The Paladins are taken prisoner in the Season 1 finale, and later, a champion is crowned.
Haven (8pm, Syfy) - Season 5 begins with Nathan and Duke coping with the loss of Audrey, who seems to be gone for good after having transformed into the wickedly evil Mara.
Spartacus: Gods of the Arena (9pm, Syfy) - A pre-Spartacus prequel about life in the House of Batiatus. In the opener, a younger Batiatus is placed in command of his father’s gladiator-training school, which leads him to use one of the most accomplished fighters to curry favor with a nobleman whom he hopes will finance the construction of a new arena.
The Secret Life of Pets (10pm, NBC) - There’s no information available right now what exactly this is, but it could be this documentary series that follows people’s relationships with their animals. If you’re a sucker for an animal show (like us), check it out.