Cactus Hour - S3-E1
Continuity mistake: When Kath, Garry, Kim and Sharon are on the tram, Kath sends Kel a message and sends an attached picture, which Gary ruins. Later, when Kel receives it the photo is different, because now Kath has a surprised look on her face. She didn't appear that way before.
Hello Nails! - S3-E5
Visible crew/equipment: At the beginning where Sharon is feeding the patient soup in the hospital, a boom mike is visible as soon as the other nurse walks in.
99% Fat Free - S3-E8
Factual error: In 4.2, "Fame," Prue and Trude see Kath and Kel arrive at the awards, and act surprised they are together. However Prue and Trude have seen Kath and Kel together at their shop several times and laughed at their dress sense, etc. They also didn't know who Kel was before, and in this episode they do know his name.
High and Dry - S3-E6
Continuity mistake: When they are all sitting at the coffee table waiting for the ads, the cups and Chinese boxes keep changing positions, and the handle of the Chinese box on the edge of the table keeps going from up to down, depending on the shot.
99% Fat Free - S3-E8
Visible crew/equipment: During the end credits, when the camera pans down over the fence you can see the camera and the crane lowering it in the window. You can't miss it.
Cactus Hour - S3-E1
Visible crew/equipment: When Kel and Kath are talking to Garry Poole about signing the divorce papers, a cameraman is visible in the microwave behind him.
Visible crew/equipment: At the end where Kel opens the limo door to take Kim to the races, a cameraman is visible in the window.
Visible crew/equipment: When Kel arrives back from his "Meet and Greet" retreat, when he comes through the door he finds a lot of clutter. When the door opens a cameraman is visible in the glass of the door.