Hot child in the city - S3-E15
Deliberate mistake: Whenever Charlotte and Trey are shown sitting on the therapist's couch, Charlotte is considerably taller than Trey. They are both sitting on exactly the same surface, so there is no logical reason for this. In reality, Trey is actually taller than Charlotte. She should not be sticking up higher than him on the couch.
Deliberate mistake: The second time they show Samantha having sex on her 'rolling bed', you can see that the guy is too far above her to actually be having sex with her. They are too far apart, probably to make it less awkward for the actors. (00:12:05)
Answer: Yes, it is.