Just checking out my video shelf. Here are the space documentaries I have. (I also have docudramas Apollo 13 and The Right Stuff, and science fiction such as 2001: A Space Odyssey; but this is just a list of the documentaries.)
[ul][li]Test Flights: Beyond The Limits (1998). Not really a ‘space’ set, but it involves flight testing that helped pave the way.[/li][li]Moon Shot (1994) The Inside Story of the Apollo Project.[/li][li]Freedom 7: America’s First Space Flight (2006). I wanted to start a Space Film Festival, but no one was interested. This film was the subject of that thread.[/li][li]Project Gemini: A Bold Leap Forward (2002).[/li][li]The NASA Collection (2007).[/li][*]NASA: 50 Years of Space Exploration! (1999).[/ul]
When We Left Earth - lots of great restored NASA archival footage, along with interviews of key figures, spans the space program from Mercury to ISS.
Hail Columbia! - IMAX doc about the shuttle’s first mission; or get it with 4 other IMAX docs in The IMAX Space Collection.
Not exactly per the OP, but I highly recommend the “From The Earth To The Moon” box set.
An excellent series, which is indeed on my Space shelf. But not exactly a documentary. 
I enjoyed that last time they played it. It’s going into my shopping cart.
I agree, this was a great series. In part because it went beyond Apollo. The moon missions were manned spaceflight’s greatest achievement, but Skylab – nearly complete mission failure jury rigged to operational status with bailing twine and NASA ingenuity – is a great story, as was the stuff with the Hubble repair mission they chronicled. There’s lots of cool stuff in the space program that suffers historically because it isn’t quite as cool as the coolest thing in the history of the human race.
–Cliffy
[quote=“Johnny_L.A, post:1, topic:503481”]
[li]Moon Shot (1994) The Inside Story of the Apollo Project.[/li][/QUOTE]
'Tis a pity this doc was never released on DVD!
My favorite documentaries include the shows If We Had No Moon, and 95 Worlds and Counting.
If you haven’t read it, I recommend the Moon Shot book from which the television miniseries was made. Alan Shepard is one of the co-authors.
I have the book and have read it twice. Excellent read!
And yes, I keep checking to see if the documentary is available on DVD. I like the part where Alan Shepard is asked if he would have landed anyway if the radar altimeter had failed to lock on the Moon’s surface (which would have caused an abort). Shepard smiled slyly and said, ‘We’ll never know.’ (Wink, wink, nudge, nudge.)