News script software? As in a program that you would use to write scripts and use those scripts to populate a rundown?
The 2 big ones in the US are ENPS from The Associated Press and iNEWS from Avid.
Others out there include Dalet, Q-Series and Octopus.
With any of these, all comes down to cost, what your needs are and how each of those systems will help meet your needs both short and long term.
If you are looking for cheap and easy. You can always build scripts in Microsoft Word. Using a 2 column format and modify the margins.
