My Teenage Idol Is Missing - S3-E1
Continuity mistake: At the junkyard, when the car is about to be crushed, it changes to a different model: among other details, check for the emblem that suddenly appears.
My Teenage Idol Is Missing - S3-E1
Continuity mistake: Inside the cab, Whitney sits on the left side and Diana on the right. When they arrive, they have swapped sides, plus the taxi's licence plate is also different.
My Teenage Idol Is Missing - S3-E1
Other mistake: During the first concert, a man and a woman stare at the camera and greet.
My Teenage Idol Is Missing - S3-E1
Revealing mistake: When Wonder Woman's motorcycle is about to jump over the car, the side of the ramp is visible.
My Teenage Idol Is Missing - S3-E1
Continuity mistake: When Whitney slides down the pipe, the bag's right handle falls over the left one or not, depending on the shot.
My Teenage Idol Is Missing - S3-E1
Revealing mistake: When Whitney is sliding down the pipe, her stunt double is noticeable: older and wearing a bulky wig.
My Teenage Idol Is Missing - S3-E1
Continuity mistake: The windows on the building that Wonder Woman climbs suddenly vanish between shots.
My Teenage Idol Is Missing - S3-E1
Revealing mistake: When Wonder Woman starts climbing the building, she uses her lasso. In the wide shots of her stunt double, an extra cable to pull her up appears.
Answer: The first actress, Cloris Leachman appeared in the TV movie which ended up being the pilot for the series. At the time, Leachman was already starring in her own TV series "Phyllis" (a spin off her role in "The Mary Tyler Moore Show"). This was actually the 2nd TV movie meant to be a pilot and the first one wasn't picked up. It's likely she thought the show would be picked up. After season 1, in which Carolyn Jones played the role, ABC was slow to make a decision to pick up the series for season 2 and CBS picked up the series. When CBS picked up the series, they changed the time setting of the show and replaced all the actors, with the exception of Carter and Waggoner (with Waggoner playing a different role technically), resulting in Beatrice Straight being cast.
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