In a couple of weeks, in the Regeneration episode, the crew of the Enterprise come face to face with the Borg who, get this, crashed on Earth 100 years ago. And, before I get the oh no it's a spoiler, you find this out at the very start of the ep. It's a good ep. until the end and minus a few million loop holes that they fell into. One would assume they phoned Stephen Hawking first for advice on timeline issues but got confused shortly thereafter. And more's the point failed to consider previous incarnations enough instead of deploying one of their considerable viewer draw story characters. Some decent effects and humour in there though. It seems a trend of late for more and more stuff, dvds inclusive, to start well and even make mid-ground but then go nutsbah.