Killjoys Determined to clean house, the team resorts to drastic measures on a new episode of the space-set action drama. With Aaron Ashmore, Luke Macfarlane and Hannah John-Kamen. 8 p.m. Syfy
The Great British Baking Show The five bakers are tasked with re-creating Tudor-era favorites, including a stuffed pie and a particular kind of biscuit, in this new episode. Mary Berry and Paul Hollywood judge the results. 9 p.m. KOCE
Nazi Megastructures A new installment looks at Hitler’s use of propaganda to keep the German populace motivated for the fight against the Allies during WWII. 9 p.m. National Geographic...