Free Preview Begins: September 11, 2011 (Sunday)
Free Preview Ends: September 11, 2011 (Sunday)
NFL RedZone will be having a one-day free preview on September 11th for a lot of providers including Dish Network, Charter, Comcast and Cox. You can see a complete list of providers to see if yours is listed.
You can visit the NFL RedZone website to get schedules, watch videos, and participate in polls and forums.
Check with your provider.