(Image source: digitaltrends.com) The season two debut of Netflix, Inc.’s (NASDAQ:NFLX) scripted political drama series “House of Cards” saw a huge increase in viewership. According to the internet traffic provider Procera Networks Inc (NASDAQ:PKT), the season two debut attracted 16% of Netflix subscribers Compared to the season one debut, the viewership growth by 14 percentage points. “House of Cards” has a huge upside potential to grow Netflix’s subscriber base. However, shares are down today on news that Carl Icahn’s investment fund has cut its stake in Netflix from 2.9 million shares to 2.7 million shares.