The Richest Man in the World - S3-E17
Other mistake: When Wonder Woman chases the guy in the factory, all of the scenes of her jumping plus the last scene of the guy running away and her jumping on top of him are reused from S2E17.
The Feminum Mystique: Part 2 - S1-E6
Visible crew/equipment: After the Nazis are defeated on Paradise Island, Queen Hippolyta tells her daughters that she has plans for those Nazis, and at the start of the next shot the set equipment's c-stand is visible at the left side of the screen (widescreen version).
Trivia: When Wonder Woman jumps over the fence, if you pause it for a split second, one can see the tip of a crew member's head. In the widescreen version, one can see the crew member and the lever he is pushing to allow for her jump.
Question: Does she go back to Paradise Island after WW2 in Season 1?
Answer: Yes, on the first episode of season 2, she is shown on the island, when another plane crash lands, she says, "They sound different from WW II". Later in the same episode a woman gathers background information on Wonder Woman. The woman says, "From 1942 to 1945, she helped the Allies win the war."