This year's ad upfronts: 5 key investor takeaways By: CNBC.com News May 15, 2015 at 12:08 PM EDT If you missed this year's upfront presentations-where TV networks trot out their new programming for potential advertisers-here are key takeaways. Read More >> Related Stocks: AMC Networks Cl A CBS Corp Cablevision Systems Comcast Corp Comcast Corp Forrester Resrch Google, Inc. Walt Disney