The CNN Tonight version she anchored was simply the best format I've ever seen on a news channel both in Europe and in the US. People got the time to express their ideas, it was welcoming guests from anywhere in the political spectrum but rather in an intellectual perspective (not so much a partisan talk which NewsNight obviously is), and talked about a wide range of political subjects. During a short period of time, the 11pm-12am segment was a bit different but fitted very well next to the 10am-11am "opinion" style debate, as it welcomed only the journalists from the newsroom to talk in depth about the subjects they were working on (on a white sofa, in an Outnumbered style). This segment was called "tomorrow's news tonight", and this whole version of CNN Tonight deserved a really longer run!
