The NYT had a behind-the-scenes look at Noah's last test show:

This new “Daily Show” will be a substantially different program, based simply on the man now sitting in its anchor’s chair. And yet, to gauge from this taping and the preparations that preceded it, “The Daily Show” has hardly changed at all. It features a new set, subtracting the familiar globe that hung over Mr. Stewart’s head while adding an elegant, expansive desk.

There is still an opening act in which Mr. Noah lampoons the events of the day (in Thursday’s case, Pope Francis’ visit to the United States); in-studio and field segments featuring “Daily Show” correspondents; and interviews with cultural and political figures, like the test evening’s guest, the CNN host Fareed Zakaria. Even the familiar opening theme, composed by the rock musician Bob Mould, is sticking around for the time being.

But the program’s success or failure rests largely on the comedic chops of a performer who, despite his international reputation, is still learning how to fine-tune his act for an American audience.

I plan to stay off Twitter after 8 PM tonight so I can watch Noah host his first show without first having read eight billion tweets about how well or how terribly he did.