Around 1969. Don't confuse this with "Project UFO" from the late Seventies.
Ed Bishop played StrAker on the show U.F.O.http://ufoseries.com/
Where Are All the UFO's - 1996 TV was released on: USA: 12 May 1996
UFO Invasion at Rendlesham - 2003 TV was released on: USA: 2003
The UFO Incident - 1975 TV is rated/received certificates of: West Germany:12
The British UFO Files - 2004 TV is rated/received certificates of: UK:U (TV rating)
UFO's The Secret Evidence - 2005 TV is rated/received certificates of: USA:TV-PG
Yes The books was made first
Youtube will most definately be overflowed with UFO sighting videos and there would be several sites on the world wide web dedicated to UFO sightings which would have UFO footage in it. There are also occasionally programs on television which feature sightings of UFO and go into depth about the existence of the extraterrestrial.
UFO Journals - 1978 was released on: USA: 6 May 1979 (TV premiere)
UFO Syndrome - 1980 was released on: USA: 13 November 1980 (TV premiere)
BBC tv
Black Box UFO Secrets - 2006 TV was released on: USA: 7 August 2006