Screening on SBS TV on Tuesday June 30 at 7:30pm, Are We Alone In The Universe? looks like one to mark in the diary if you've been interested in our recent astronomy coverage.
While the SETI project has become something of a poster-child for the search for alien life, efforts like NASA's Constellation project and last week's LCROSS lunar launch are are part of the search for inhabitable worlds themselves.
Tuesday's show focuses on a big one - the most "Earth-like" planet yet discovered so far, Gliese 581 c, described as lying "just in the inner warm edge of the habitable zone" of its red dwarf star.
Interestingly, while the documentary pins its hopes on the planet as potentially habitable, though that theory is now disputed.
All this is interesting if you keep in mind the various human exploratory missions being planned for the future, including NASA's Constellation mission, and the Europa Jupiter System Mission, which aims to determine whether the Jupiter System "Harbors Habitable Worlds".
And to put things in perspective, as exciting as Gliese 581 c is to documentary makers and astronomers, it's only the tip of the iceberg when it comes to possible inhabitable worlds, as this video goes some way to demonstrate.