http://www.lunaranomalies.com/temple.htm
...
In 1976, Royal Archeological Fellow
Robert Temple put forth a startling theory. He asserted that an evidently primitive African tribe, the Dogon, had substantial astronomical knowledge concerning the existence of a "heavy" hidden, companion star to Sirius. This book was greeted by critical acclaim and almost universal academic chagrin. Numerous NASA luminaries attacked Temple with what seemed far too much enthusiasm. As things developed, Temple was eventually vindicated by a number of astronomical observations.
...
In 1977 the BBC made a 90-minute television documentary special for their series Horizon, entitled 'The Case for Ancient Astronauts'. I
[Temple] was contracted as a Researcher, which was my first television job. I was originally supposed to be the subject of the entire programme, but the producer, Graham Massey, became more interested in discrediting Erich von Daniken, so most of the programme was devoted to that. Graham did an incredible demolition job on von Daniken; I did not prepare that material, but worked only on my own subject matter. The last fifteen minutes of the programme were devoted to the Sirius Mystery, which Graham treated very fairly indeed, contrasting it as a 'respectable theory' with what he considered the nonsense of von Daniken. From the script, which I have, I see that the narration of the programme states of myself that 'He is an assiduous, careful, and extremely knowledgeable researcher.'
While the programme was being prepared, Graham kept getting phone calls from a stranger in America. Finally Graham told me about them. He said the man was ranting and saying 'you must not let Robert Temple on television'. (Also, it appeared that the man in question was available for an interview himself at anytime!) Graham told me: 'I told this annoying man that I am the producer of the programme and I make my own decisions about who appears in it and who doesn't, and would he please stop calling me all the time.' The man apparently kept mentioning that he worked for NASA, and Graham was doubly annoyed that there seemed to be the implication that the American authorities did not think I should receive media attention. The man was the same one who had phoned Arthur Clarke. NASA was never disassociated from this man's activities and attacks against me.
-------------
So who was this "annoying man" who was so frothingly determined to keep Robert Temple and the Sirius Mystery from getting on television? And who apparently had the full backing of NASA in his efforts?
Well, by agreement with Temple, we are not at liberty to disclose the "annoying man's" name. We are however, not above dropping the subtlest of hints as to his identity ...
So ask yourself, why was this "annoying man," supposedly such a paragon of strict empiricism and logical skepticism, so anxious to keep Temple from being heard? For the same reasons that the intelligence agencies were! Because Temple was not "on the team" and therefore not aware of the information release policy, he had to be kept from obtaining an audience at all costs. Again, is this the behavior of cool rationalists who have nothing to hide? ...