Continuity mistake: In episode 10 (Joey's Place) the Tanner family move Joey into the garage, redecorating it so the entire place is filled with Joey's furniture, but in this episode it shows the characters in and out of the garage which is completely empty and back the way it was before Joey moved in. Later in the episode Joey's stuff is out of the alcove again.
Continuity mistake: When young Al reaches forward with his left arm to take the book that Miss Degroot wants to give to him, she quickly pulls back but young AL still has his arm raised. In the next shot, his hand his down by his side.
Conspiracy - S1-E25
Continuity mistake: In the beginning of this episode, Riker orders Geordi (who was navigator at the time) to increase to Warp 6. In response, Geordi replies, "Aye sir, full impulse."
An Impossible Silence - S1-E11
Continuity mistake: When Catherine enters the precinct station, the desk sergeant places a small white file box on the counter. There's nothing else sitting next to this, but when the shot reverses, a tall black police radio with an antenna sticking up has appeared there. (00:16:10)
Continuity mistake: Brooke and Ridge have known each other for at least 3 years when Rick is born. Yet when Rick is 16 Brooke and Ridge talk about how it's been ten years since they met. Even given soap opera children's amazing ability to grow it's a huge mistake that they say they've only known each other ten years when it's at least nineteen.
Continuity mistake: At the end, when Teddy and his friends get the directions to the Wizard's fortress, Prince Arin's hair is bright yellow as he shakes Wooly's hand. In the next shot it's back to his normal orange hair.
Continuity mistake: In the pilot episode, at the end of the car chase, officer Tom Hanson's weapon changes from a Police Special (.38 or .45) to a .357 Magnum.
In a Class of Their Own - S15-E4
Continuity mistake: When Barry walks through the door, he has the plank of wood on his shoulder. The camera briefly cuts to Paul before cutting back to Barry in less than a second - but the plank has now completely disappeared.
The Catwoman from Channel Six - S2-E12
Continuity mistake: After April ends the interview with the contest winner, when Vernon says, "Ok, that's a wrap," he's wearing headphones without an antenna, but in the next shot an antenna suddenly appears at Vernon's left earpiece, then promptly disappears.