Question: How could Sam narrate parts of the stories if he never returned home ?
Question: Has it ever been stated in an episode how long it takes Sam to leap from one person to another? It seems instantaneous from the viewer's point of view, but Al is nearly always present at the point where Sam leaps out, and appears quite early in the following episode wearing completely different clothes.
Answer: It's suggested that it can be a substantial period of time, as much as several weeks, although it varies dramatically.
Question: In which episode is it stated how long Sam spends bouncing around in time in between leaps? I have watched the lot and never heard this.
Answer: The amount of time Sam is away between leaps isn't constant, but in "Genesis" Al tells Sam that it's been around a week between Sam leaping out of Tom Stratton & into the baseball player even though from ours & Sam's perspective it happened straight away.
Question: Is it ever stated how the people act once Sam leaps out of them? Presumably the person leaps back into their place, but wouldn't they be confused initially and then just go back to acting the same way?
Answer: In "Double Identity", Sam leaps from Frankie to Don Geno when the blackout hits and we see how Frankie responds to returning. He appears to have no memory of the time he was displaced and thinks it is the moments just after when he left the day before.
Answer: Likely, Sam's narrations are just his own internal monologue and not reports back to the project or anything.
Captain Defenestrator