Next month, the late-night TV landscape on NBC will look drastically different.

"Late Night" host Jimmy Fallon is taking over "The Tonight Show" from Jay Leno, while "Saturday Night Live" resident "Weekend Update" anchor Seth Meyers graduates to "Late Night."

The first of NBC's promos for "The Tonight Show starring Jimmy Fallon" looks back at a retrospective of hosts through the years (neatly sidestepping that whole, Jay-to-Conan, and back-to-Jay matter), lending the focus to Fallon, and some of his more memorable 'Late Night' bits through the years.

Meanwhile, the "Late Night with Seth Meyers" first look includes 'Saturday Night Live" players Cecily Strong and Kenan Thompson as the Weekend Update anchors leave their desk, before Seth's tour of the new 'Late Night' studio goes very wrong.

It all leads up to NBC's coverage of the 2014 Sochi Winter Olympics, after which "The Tonight Show starring Jimmy Fallon" debuts on Feb. 17, followed by the "Late Night with Seth Meyers" premiere on Feb. 24.

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