今日のCNNの番組表から討論番組を探してみたけど、少ないね。
確かに討論番組以外にも討論が含まれるものはあるけど、それもそこまで多くないし。

https://us.cnn.com/tv/schedule/cnn
North America
Monday, February 18, 2019

Early Start　(4am ET/1am PT)
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