Continuity mistake: Lily and Marshall mention that they've been using the same toothbrush ever since they've been together, but in the 14th episode of the 1st season, "Zip, zip, zip", Marshall and Lily are simultaneously brushing their teeth with a tooth brush each (before Ted and Victoria get home). (00:05:05)IDFS33140
Continuity mistake: Steve receives a Rowflux and five containers of protein powder. He takes one of the containers leaving only four still on the floor. In a subsequent scene, Steve is still holding the container but now five containers can be seen behind him, giving him six containers altogether.
Continuity mistake: In the scene where Thugnificent is giving Riley is new chain and holds a speech, we can see that Riley's chain is as long as Thugnificent's. However, when he actually hands it over to Riley and when Riley does wear it, the chain is considerably shorter to compensate for Riley's length. (00:10:10)Andreas Winnberg
Continuity mistake: In the scene where the "clown" is trying to get back into his closet to eat his soup while Marni and her boyfriend are fighting, the closet door is open. Then when he starts to go back to get a spoon and changes his mind the "clown" turns around and opens the door, even though it was already open.Disney-Freak
Continuity mistake: When Jason is banging on the window and wakes up Marjee and Rose the clock says 2:00am. Rose then leaves and goes down to the kitchen in which she talks to Renee. She asks Renee "Where have you been? It's almost 2." It's obviously past 2 as we saw it on the clock earlier.