Radio Harry - S2-E4
Continuity mistake: The kids' pancakes change during the scene. Sahara's has a hole and tear in it from when Harry pokes it, but later it has just a hole. And the amount of blueberries and whip cream on Max's changes. Some shots, they're back to the previous set up.
Family Day - S2-E5
Factual error: The phone number Harry is given has an exchange that starts with "0" (the first 3 digits after the area code). Phone numbers (in the US) can't start with "0" since that's the "operator."
Family Day - S2-E5
Continuity mistake: When Harry first picks up a water balloon and throws it, his hands are now empty. In the next shot, he has a blue water balloon in his hand. When he throws that one, you see it's a pink balloon being thrown.
The Weight - S2-E11
Continuity mistake: Harry places the lollipop in his mouth twice as he talks to Kate about Max.