Re: The MIchael J. Fox Show
Steven Levitan said it was dropped. So who knows what they're talking to now
On whether it's a documentary or not: Levitan said that in the original pitch, it was explicitly a documentary, made by a Dutch filmmaker named Geert Floorjte who had lived with Jay's family as a teenage exchange student and developed a crush on Claire (while Mitchell had a crush on him). In the end, he and Christopher Lloyd decided it was an unnecessary component of the show - especially since they weren't sure how much they liked the idea of their characters letting themselves be filmed.
"Inception" is a layer cake.