I have followed these series with much curiosity. I have always followed the history channel whilst being conscious of the fact that most of it is propaganda (i.e lots of the things on nostradamus become related to terrorism!!!) but this series intrigued me. Many of my friends have opened themselves up to the idea of aliens interacting with humanity because of this programme; which simultaneously excites and worries me. With these programmes i cannot help feeling that there is ALWAYS an agenda.
As I'm sure you know, disclosure is a topic which has been thought about and planned for a very long while. Whilst it is clear that the 'powers that be' have to disclose information about ETs interaction with humanity, it is also clear that this will be done in a very controlled way. The history channel (and the like) is a very important outlet for this information. If you watch some of the episodes carefully, you will notice that there are some EXTREMELY 'outlandish' ideas which are presented for literally 5 seconds. For instance, they casually throw out the statement that 'the moon may be an artificial construct' and 'the earth might well be hollow' and quickly proceed onto something else.
If ideas such as these are put on TV, doubtless soon they will be talked about. Then, 10% of people may believe and the rest will think they are 'wackos'. However, the sheer fact that these 10% think its true and the rest have PREVIOUSLY ENCOUNTERED the ideas means that when they reveal the truth (and if, of course) people will more readily accept the information...because, after all, some people already thought it was true! Turns out all those 'idiots' were right!!