Revealing mistake: When Wonder Woman (Diana) uses her bracelets to dodge bullets, the many sparks that the bracelets emit, as the bullets hit, are controlled by wired remotes held in Lynda Carter's hands. They are quite visible in her fists in many episodes. Small red bits around the circumference of the bracelets also appear, which provide the flashing spark special effects.
Revealing mistake: In every shot of Wonder Woman's plane flying, it's very obvious that whoever is inside has been replaced with a blatant doll.
The New Original Wonder Woman - S1-E1
Revealing mistake: When Wonder Woman is pushed against a wall, the wall shakes, revealing it's made of cardboard. (01:32:30)
The New Original Wonder Woman - S1-E1
Revealing mistake: When the elderly woman fires the submachine gun at Wonder Woman, the sparks created by her bracelets are bigger and brighter than usual, and we can see the wires under both of her arms to help create those special effects. We can even see the wires' shadows on the wall behind her.
The New Original Wonder Woman - S1-E1
Revealing mistake: When Wonder Woman rushes to the hospital holding Trevor, one can easily see he's been replaced by a mannequin.
The New Original Wonder Woman - S1-E1
Revealing mistake: When the two Germans are falling on their parachutes, their ankles disappear due to the blue screen.
Wonder Woman Meets Baroness Von Gunther - S1-E2
Revealing mistake: After Wonder Woman saves Tommy from the falling ladder, when she uses her golden lasso to descend with Tommy (just a doll) we see her lasso (actually a thin rope) and its shadowy reflection on the windows, but we can also see the glistening of the stunt woman's safety cable as well.
Wonder Woman Meets Baroness Von Gunther - S1-E2
Revealing mistake: When Wonder Woman flies to save Tommy, he is replaced by a blatant mannequin.
Fausta, the Nazi Wonder Woman - S1-E3
Revealing mistake: When Wonder Woman fights against Mueller, he is replaced by an obviously younger and thinner stuntman.
Fausta, the Nazi Wonder Woman - S1-E3
Revealing mistake: When Wonder Woman launches a thug up in the air and inside a crate, one can see the glaring safety cable that holds him up.
The Feminum Mystique: Part 1 - S1-E5
Revealing mistake: When Wonder Woman goes to flip the guy out of the Jeep, he jumps out of the Jeep and right into her hands just before she flips him. The problem is that when she grabs him, just before she flips him, you can see his shirt all puffed out in the back with the distinct outline of a big pad or cushion of some kind to cushion him after he's flipped.
The Feminum Mystique: Part 2 - S1-E6
Revealing mistake: Wonder Woman arrives at the island gardens, and the floor she stands on has a protruding object. Then the bad guys throw a smoke bomb at her. The shot swaps back to Wonder Woman, and an explosion occurs right where the protruding object was. (00:21:35)
The Feminum Mystique: Part 2 - S1-E6
Revealing mistake: When one of the Nazis brings Drusilla a hot meal while she's being held in the deserted warehouse, in the shot just as she whacks him in the stomach we can see the stunt cable over the Nazi (stunt double) which lifts and pulls him back.
The Feminum Mystique: Part 2 - S1-E6
Revealing mistake: When Wonder Woman gathers with the rest of the girls, there are black spots used as actor marks on the floor. There's one where Wonder's mother walks to and stops at when she arrives.
Wonder Woman vs Gargantua - S1-E7
Revealing mistake: After Erica shows Gargantua the window of Steigler's location, when the gorilla climbs up the building we can see the end of the hairy sleeves, and the human wrists/hands of the stuntman in the gorilla suit (then, on his way down we can see the end of his hairy pants at his ankle, as noted in another mistake). (00:12:40)
Wonder Woman vs Gargantua - S1-E7
Revealing mistake: When Gargantua grabs Steigler, he is replaced by an obvious doll with stiff hands and rubber legs that bend awkwardly. (00:15:01)
Wonder Woman vs Gargantua - S1-E7
Revealing mistake: When Gargantua has Steigler under his arm and is carrying him down the pipe, you can see the cuffs at the bottom of the pants legs on Gargantua, even though he's supposed to be a real gorilla and not wearing any pants. (00:15:27)
Wonder Woman vs Gargantua - S1-E7
Revealing mistake: While the circus crowd is gathered around the cage with Gargantua, there's a closeup of the gorilla as he roars and we can see the stuntman's human teeth behind the gorilla's teeth. It happens again in Gargantua's closeup while he's climbing up to Steigler's window.
Wonder Woman vs Gargantua - S1-E7
Revealing mistake: When a man runs towards Gargantua and is launched upwards, one can see the trampoline the stuntman uses.
Revealing mistake: When the explosions go and the place starts to shake, neither the trees outside nor the objects in the lab move an inch, revealing the camera trick. Later on, the group walks towards a table and things do shake.
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."