Episode four of the new season of Portlandia, starring Fred Armisen and Carrie Brownstein, will feature A Prairie Home Companion tailgating. The sketch is also being spun off into a series of four webisodes, which can be viewed online before the season premiere. Season four of Portlandia premieres Feb. 27 at 10 p.m. on the Independent Film Channel. If an avid blogger can’t leave a comment on your website, he’ll write about it. That’s what tech-savvy journalist Doc Searls did when he encountered issues with a story from WBUR, Boston’s NPR news station.