Way back in the late 1990s, HBO aired an amazing miniseries called From the Earth to the Moon. Produced by Tom Hanks, the 12-episode series covers most of the key events in the Apollo program, including the Apollo 1 fire, the first moon landing, the Apollo 13 crisis, and much more. In total, 30 of the 32 astronauts in the Apollo program are represented onscreen during the series.
Each episode runs about 50 minutes; Wikipedia's entry on the miniseries includes a nice summary of each episode that doesn't give too much away.
I've watched it at least a half-dozen times, and up until this summer, every viewing was at DVD resolution—eventually upscaled on higher-resolution TV sets, but still not the greatest video experience.
This summer, however, HBO re-released the series after remastering it in HD. They also reworked many of the special effects to take advantage of advances in that field over the last 20 years. If—like me—you're a physical media person, you can pick it up for only $23 from Amazon…or if you're fully digital, you can get it from the iTunes Store for $30. (Yes, a physical copy with media and packaging and shipping1and it includes a digital copy! is $7 less than a series of 0s and 1s written to a file. What a wacky world we live in.)
The visual changes are dramatic, as you can see in these shots from the two versions.