Storywise, since your idea of a bite and mine may differ, I can't say much more
Specifically when I played Back to the Future each episode was set around an introduction to middle point to Climax. Thus each new episode felt like you had to restart your engine.
The problem was that because each section was so self contained, even though it was just one large story, it felt less like one story and more like a series of stories that you can put together. Thus when I played them one after the other with the idea that this was "one story" it gave me the same issues you get when you read a book that has constant climaxes, introductions, and quiet moments. A sort of emotional backlash that dulls you to the story and makes the experience feel empty.
It wasn't the game's fault it was more that by the time "I" personally settled down into the game and felt like "Ok, now it is going" I finished the game and I had the next game to play. It just takes me too long to really get into the grove of any individual episode and I cannot crossover grove to the next.
It really turned me off these episode adventure games. (Mind you, Wallace and Grommit was the same but that game didn't put importance on continuity.)
But why I ask is because I feel if a game managed to intrigrate each episode better so it feels more like a collective whole with flowing motion, rather then a HUGE stop sign, moving from one episode to the next. That it would simply allow me to enjoy these episode games.