Continuity mistake: When Michael is happy about Gina dating, we see Joey celebrate as well, he throws his hands in the air and when they come back down, they are apart, then when the shot changes, they are interlocked. Then when Joey points at Michael, he does it with his left hand and when the shot changes it is with his right hand. (00:12:05)
Continuity mistake: Episode 1-19 Joey and the Fancy Sister. When they are looking at the engagement ring under the black light, the ring goes from Joey's hand to Gina's instantly between shots.
Continuity mistake: When Michael, Joey and Gina are talking just after the opening credits, we can see that the writing on Michael's laptop changes between shots. (00:02:20)
Joey and the Big Audition - S1-E10
Continuity mistake: When Joey goes into his audition, we can see that the bag is no longer on the couch, if you look through the gap in the door. (00:17:50)
Joey and the Dream Girl (1) - S1-E8
Continuity mistake: When Michael tries out baseball, we see him holding the baseball bat, then when the shot changes, after Joey asks him for another quarter he is no longer holding it. (00:15:45)
Joey and the Big Audition - S1-E10
Continuity mistake: In the scene were Michael is running lines with Joey, the position of Michael's book keeps changing position on the foot stool in between shots. (00:14:25)
Joey and the Perfect Storm - S1-E5
Continuity mistake: When Joey goes to visit the sick actor in bed, the tissues in the actor's hands and on the sheets disappear between shots.
Continuity mistake: When Joey goes to see his agent, we can see the paper pad and the pen move in between shots. (00:07:55)
Revealing mistake: When Joey is climbing the wall, you can see that the piece of wall he breaks has a break line in it.
Joey and the Big Audition - S1-E10
Continuity mistake: When Joey is going to his Deep Powder audition, when he meets Katie, throughout the entire scene, the piece of paper changes positions in her hand, in between shots. (00:09:00)
Joey and the Perfect Storm - S1-E5
Continuity mistake: During the end credits, the amount of milk in Michael's glass keeps changing. (00:20:35)
Joey and the Plot Twist - S1-E12
Continuity mistake: When Joey asks Alex to give him a second we see her put the script in her right hand, then when the shot changes, we see it's under her left arm. (00:16:45)
Joey and the Plot Twist - S1-E12
Continuity mistake: When Joey finishes shooting his scene for Powder Mountain, and Alex comes over to him, we see her hair is under the headphones, yet in later shots, it comes over the headphones and back under them. (00:18:35)
Joey and the Book Club - S1-E4
Continuity mistake: Just after the opening credits, when Gina closes the magazine and stands up from the couch, a glass appears in her hand.
Joey and the Big Audition - S1-E10
Continuity mistake: In the scene were Gina is talking to Joey about his audition, we see that when Joey puts the water down on the table, the red logo is facing the camera yet in the next shot, it is facing to the side. (00:11:15)
Joey and the Big Audition - S1-E10
Continuity mistake: In the scene were Joey is talking to his agent on the phone, the number of bites in her apple changes between shots. (00:07:20)
Joey and the Big Audition - S1-E10
Continuity mistake: Right at the beginning of the episode, when Gina gives Michael the plate of food, in between shots the food on the plate changes positions.
Joey and the Big Audition - S1-E10
Continuity mistake: In the scene where Joey goes back to audition and meets Katie again, we see that she take off her bag and holds it in her other hand, then a few shots later the strap is over her shoulder. (00:16:50)