Continuity mistake: Gloria speaks Spanish to Manny and he seems to understand it. But later, when his brother Joe was born, a tutor had to be hired because Manny didn't speak or understand Spanish.
Visible crew/equipment: In the scene where Dylan visits Haley at home, when Claire grabs Dylan as he's going up the stairs you can see a member of the crew (probably the man holding the mic) in the mirror in the background behind Claire. (00:10:40)
Continuity mistake: In the scene where Luke gets his new bike when Phil places the helmet on Luke's head the strap is not buckled up, but when the shot changes back and forth again it's buckled up and fastened. (00:05:05)
Continuity mistake: In the scene before Jay hits Phil in the face with the plane, the remote control's antenna (the one he is using to fly the plane) switches between the 'forward' and 'up' positions. (00:10:50)
Continuity mistake: Claire takes some cookies out of the oven and puts them on a cooling rack. When Manny asks her what the matter is with Claire, she holds still while she's about to put down the second cookie in the top row. When the camera cuts to a different angle there are suddenly three cookies in the row already. (00:12:05)
Continuity mistake: In the scene where Claire and Manny are discussing how they are brother and sister, Claire is placing cookies on a cooling rack from top to bottom. When the shot changes they are now placed left to right.
The Incident - S1-E4
Continuity mistake: When Mitchell goes outside to speak to his Dad in the pool, his Dad has a glass beside him. When the shot cuts back to his Dad it has disappeared. (00:13:00 - 00:14:00)
The Incident - S1-E4
Visible crew/equipment: At the start of the episode, Hayley and Luke begin fighting on the couch, and Hayley's filming equipment becomes visible. (01:14:00)
The Incident - S1-E4
Continuity mistake: When Dylan arrives at the Pritchett family dinner, and Phil notices that he brought his guitar, Dylan's gig bag switches shoulders between shots.
Continuity mistake: During the episode when Claire and Phil do their warm-up before racing each other, their children Alex and Luke arrive from school. They get down from the car, and the car takes off and goes away. But in the 2nd shot we can see that same car parked in front of them. (00:17:00)
Visible crew/equipment: While Phil and Claire are warming up for their race, Alex and Luke are getting dropped off. When you see them walking towards Phil and Claire you can see a crew member with equipment behind the bushes at the right side of the screen. (00:17:05)
Continuity mistake: When Javier is setting up the pool table and Jay is about to break, we see in the next shot that the balls have slightly changed position, and in another shot before the end of the scene the balls have changed position again, without any play made between either of them. (00:09:00 - 00:10:00)
Continuity mistake: When Cameron runs into Jay and his friends, Shorty initially has his hands in his pockets, but then his hands are out in front of him, holding a cup of coffee. (00:01:25)
Visible crew/equipment: When Haley walks into the kitchen she tells Dylan they're over and hangs up on him. Then when Haley's cell rings, as the camera quickly pans around, the pink T-mark becomes visible on the floor behind Haley. (00:04:35)
Continuity mistake: When Claire comes in the kitchen a wine bottle with a blue/white label is standing up on the table. When Luke explains the effects of Jägermeister the same bottle is lying down on the table. In the next scene the bottle is standing upright again. (00:16:10)
Visible crew/equipment: When Cameron and Mitchell pull up to the driveway we can see what looks like a camera and 3 crew members reflected in the back window. (00:08:20)
Visible crew/equipment: When Manny gets done with the dentist Jay convinces him to go to the movies, and as they leave the office we can see the reflection of the boom pole/mic on the receptionist's glass window, at the top, left side of the screen. (00:01:40)
Visible crew/equipment: When Manny brings out an epee, equipment and a bald headed crew member are reflected on the polished guard's surface. It's pretty quick, but it's there. (00:09:45)
Answer: He has seen himself dancing, and is mortified at how bad he looks.