The Two Way TV-built text application, accessible by pressing the red button when tuned to CNN, features in-depth stories, weather reports, financial news and a schedule guide.
"The interactive television service ensures that our viewers have more information available at their fingertips in an easy-to-use format," said CNN business development manager Chris Press.
"We are delighted to support this enhancement to CNN, and are always keen to champion cable interactivity," said James Turner, head of sales at Two Way TV.