If Tatiana Maslany is burned out from juggling various roles on "Orphan Black," it doesn't show in the premiere of the fifth and final season. The plot — something about clones trying to wipe out other clones — is still a mess. The real draw here is watching its Emmy-winning star morph from one unique character to the next without it ever feeling like a parlor trick.
9 p.m. Sat., BBC America
The father of invention
"Steve Harvey's Funderdome" combines "Shark Tank" with a gladiator fight as inventors woo a raucous audience that will decide how much money producers will fork over. Harvey, as usual, is an affable host, although he's probably steaming inside that he doesn't get as much credit as Maslany for his own juggling act.
8 p.m. Sun., KSTP, Ch. 5
Why they fight
"Hell on Earth: The Fall of Syria and Rise of Isis" is about as heavy as a documentary gets, but if you want to better understand world affairs, this is captivating homework. Filmmakers Sebastian Junger and Nick Quested clearly know their subject matter.
8 p.m. Sun., National Geographic Channel