Yeah, I did do these back on Caption This in the old days. Some funny stuff was posted there, but it ended up being dissatisfying because a lot of the jokes only made sense if the episode was fresh in your mind. It's too much trouble to dig a videotape out of a box (if you even have one), and watch an episode before you can read captions. That's why the current batch has been written to be able to stand alone. The intention is that you should be able to read these and follow the plot even if you've never seen the show in your life. (Although this 1796 does need to have an introduction page written, so that people know where they're starting from).
Those little marquees at the top of every page (Today on Dark Shadows...) have the kind of 1-shot one-panel jokes that you used to see on Caption This. A lot of them are funny, but don't really fit into the main story, and so have to be presented separately. Like the one about "The calls are coming from INSIDE the coffin!" It cracks me up but there's no way to squeeze it into what's happening in that scene.