Chapter 12 - S2-E2
Factual error: After Oro Dassyne has boasted about his fortress' defenses and the droid standung by him announces that he has spotted two Jedi approaching, Dassyne snatches the binoculars from him to take a look himself. Curiously, he holds them at a very different angle, i.e. he is not looking into the same direction the droid was looking, and still he spots the Jedi immediately.
Darth Vader vs. Gandalf - S1-E2
Factual error: When Gandalf is first shown, it says that Lord of the Rings is the third bestselling novel of all time. At the time of filming (and still in 2013) The Lord of the Rings was the second bestselling novel of all time. (00:01:40)
Factual error: As the beginning shows Krypton explode, there is a huge cloud of dust at the remains of the planet that then fades to nothing. Only space dust would not act like that from an entire planet exploding. It acted like dust settling on the ground and just fading away, rather than dissipating into space. (00:01:25)