Hey, what's the old Stargate gang up to?  Well, I'm glad you asked. Former Stargate Executive Producer and writer (and, oh by the way, Dark Matter season 1 Consulting Producer) Martin Gero is show running his own series, Blindspot, that premieres on NBC - Monday, September 21st at 10:00 p.m. *** Meanwhile, I little further north, former Stargate fight and stunt coordinator - and…