Phil on Wire - S3-E3
Continuity mistake: In 1-20 "Benched", Phil specifically states he knows how to walk a tightrope because he went to trapeze camp. But in this episode, he learns how to walk a tightrope.
Continuity mistake: In the scene when Cameron and Mitchell are arguing about Cameron's clowning career, Cameron is unpacking soft toys from a large paper bag. Cameron unpacks a hot dog soft toy twice from the bag, when the camera cuts from Cameron to Mitchell and back to Cameron. (00:13:00)
Continuity mistake: Mitchell places his glass trophy on the left side of the mantel. The award moves to the center of the mantel just a few seconds later.
Phil on Wire - S3-E3
Other mistake: When Cameron follows Mitchell into the sea, Cameron's shirt is visibly wet even though he is in a very shallow area of water. After cutting back to Cameron, the wet mark on his shirt has gotten bigger and traveled further up his shirt even though there are no significantly large waves that could have caused him to become so wet.
Aunt Mommy - S3-E15
Continuity mistake: When Claire is talking to Phil about having Cam's baby, she grabs a coffee cup out of the cabinet. In the next shot she grabs the same cup out of the cabinet again. (00:13:10)
Plot hole: Luke says they received a red light ticket in the mail from the time he stole a car, but it was Cameron's car he stole. (00:21:25)
Answer: He has seen himself dancing, and is mortified at how bad he looks.