it is mainly just an old guy talking, and saying things that he "heard" which we viewers can't hear.
there was no ghost images or actual scenes. there were scenes of distant knocking sound which we can't really verify if it was someone doing it just for this TV show.
then there were scenes of him talking as if a ghost was inside of him.
towards the end, it was more scenes of him and others talking, there was no solid evidence.
so this TV show can't prove anything. if they put some cameras inside the ship, and record it daily, maybe they will record something.
there was no ghost images or actual scenes. there were scenes of distant knocking sound which we can't really verify if it was someone doing it just for this TV show.
then there were scenes of him talking as if a ghost was inside of him.
towards the end, it was more scenes of him and others talking, there was no solid evidence.
so this TV show can't prove anything. if they put some cameras inside the ship, and record it daily, maybe they will record something.