IStage an Intervention - S2-E2
Visible crew/equipment: When Carly and Freddie are talking in the hallway about his bad luck, you can see a crewmember's shadow on the wall next to Freddie.
IStage an Intervention - S2-E2
Visible crew/equipment: Every time the shot shows the chair between living room and kitchen (when they show where the chair is), the reflection of the studio light is seen on the bottom of the chair. For example here when Carly looks at Pack Rat, when she walks, you can see the studio lights at the bottom of the chair.
Visible crew/equipment: When Spencer is replacing Lewbert, you can see the studio lights reflecting off the bronze dome.
Chosen answer: I don't know how to answer the first question but for your second question, there is going to be an episode after iPWV, called IDate Sam & Freddie which will deal with their kiss from iOMG. IParty with Victorious will not be related to IDate Sam & Freddie.
The I date Sam and Freddie proves that they are a couple.