It's actually usually the number one show on cable for 18-49 year olds on the nights it runs, and some weeks all of cable for non-sports events.
That's why I was so shocked they didn't find a way to keep it, it was a cash cow.
There was an incident in Austin where they apparently filmed a dude get killed by the police from several tasers. They kept the footage for a year or something and claimed they were never asked for it so they destroyed it, based on whether their retention policy was. Don't know how much that played into it.