Episode #1.5 - S1-E5
Continuity mistake: After Beth and Greg tell Jim that they want to take on the US government, it cuts to everyone gathering for dinner, and in the next closeup we see the bulletin board with signs pinned to it, but when Susie bumps into Claude in the shots facing him both signs on the board change. (00:10:00)
Episode #1.8 - S1-E8
Continuity mistake: Towards the end, as everyone's gathering outside, Ken Marino has his hand in the front pocket of his shorts. The shot switches to a view from behind, and it's in his back pocket. Back to the front, and it's back where it was before. (00:22:10)