Re: blue ray - further extended cuts?
The extended episode is being shown in HD (not just upscaled from VHS). Therefore the scenes that were originally cut from the episode must have existed seperately of Melinda's tape.
The tape has provided instructions for putting the ingredients together, but all the ingredients (including cuts/bloopers etc) are stored in that mountain ready to be "HD'd".
One day soon, man is going to be able to harness incredible energies, energies that could ultimately hurl us to other worlds in... some sort of spaceship.