Forty Years of Science Fiction Television Featuring: Star Trek
Forty Years of Science Fiction Television Featuring: Star Trek is a documentary that briefly touches on many historical aspects of forty years of science fiction television series, from the earliest ventures of Captain Video and His Video Rangers of 1948 to  in the 1980s and '90s. The documentary was released in  by Simitar Entertainment, Inc.

The Star Trek segment was the longest, running for more than half of the show. It talked about the history of the series and showed the blooper reel.

External links
 
 Forty Years of Science Fiction Television Featuring: Star Trek at the Scifi wiki

Documentaries