I would have to say almost definately NOT, well planned and thought out, the first one i have seen very similar on you tube over the last year or two, the second video footage the dogs do not seem affected in any which way at all, and as we know obviously the animals would have been the first to have picked up on anything "abnormal", the third, granted the Labrador did look terrified, up in the attic it looks to me tho just after he looks as camera (straight at you) his right leg seems to move not even an inch, this would be very easy to set up.
From my own experience over nights and weeks of filming its is so very rare to catch anything on film, for some unbeknown reason alot never seems to come out of film even tho we seen with our own eyes. evp and camera yes, i would have to say everything to coincidental (and if he reading this now - invite me over to investigate n we see what happens then, fancy a trip to the states).
There are too many similar ones on you tube, and too many to compare them too, but a definate NO NO from me.