That was a great event, but did it reach all the people to whom Bill Nye has spread his nonsense? I very much doubt that the audience that watches Tucker is the same audience that watches Nye.
To approximately rebut Nye's effect on the members of his audience, Tucker would have to reach the same group for something approximating the same amount of time.
The problem with the existing media structure is that they can spend much time advancing an agenda, and Conservatives have to spend at least as much on air time rebutting them. (yes, I know it's inexact, but I think you get the point.)
Consider this example of media bias in promulgating their agenda.
What would that look like if Conservatives were the News Anchors and reporters? It certainly wouldn't look like that, and the public would have different impressions about what was going on in the world than they do now.