Just checked at http://www.tntdrama.com/ there are articles about signing up with Dish just for this.
Note: Corrected spelling.
To Whom It May Concern:
My wife and I just got rid of cable (yahoo!). My wife then asked me, "Hey, I'd like to keep watching 'Cold Justice,' how do we get TNT?" So, for folks like us with a Samsung Smart TV, how does one get access to specific stations (such as what one could access via Roku, etc) without returning to cable?