Millennials are killing everything, apparently: diamonds, Buffalo Wild Wings, beer. (That last one is dubious.) Generation X gets blamed by millennials for screwing up things like the economy, while Gen Z’s young members are too focused on their fidget spinners to care — at least that’s what it seems like based on recent headlines. But long before generations were even named, the Greatest Generation lived through the Great Depression. Don’t worry — that’s not what podcast “The Greatest Generation” is about at all. It’s actually a Star Trek podcast that takes its name from Star Trek: The Next Generation, often heralded by Trekkies as the long-running, often-rebooted series’ high point. This podcast is now discussing Deep Space Nine, though, and its cross-country tour will stop at Rex Theater for a live recording of the show.