NHL hockey is back and Comcast SportsNet will bring viewers even more in-depth coverage in 2013 with the addition of Boston Bruins’ Legend Mike Milbury and the return of Bruins’ Forward Shawn Thornton to its NHL programming line-up.  Milbury -- who served as a player, coach and broadcaster for the team -- will co-host Cross Check with Michael Felger.  Thornton, known to be an “enforcer” for the Bruins, will once again join Comcast SportsNet throughout the season on various shows and programs.