Stephen Colbert and David Letterman as seen in “The Late Show With David Letterman”

Colbert come lately: The seismic shakeup of the late night TV landscape is continuing, and with Jimmy Fallon having hold of the reins of NBC’s “The Tonight Show” for nearly a year, CBS’s rival fare, “The Late Show,” is moving forward with its own after-dark plans.

David Letterman has hosted the “Late Show” since its inception in 1993, and his departure only a year after arch-rival Jay Leno left the “Tonight Show” truly marks the end of an era for late night television.

The respected comedian will bow out with his last show Wednesday, May 20, of this year, leaving behind him more than 20 years of late night laughs. It won’t be the end of the “Late Show,” though -- not by a long shot.

Fellow comedian Stephen Colbert will be filling Letterman’s shoes at New York’s Ed Sullivan Theater as the “Late Show’s” new host, and he brings with him an incredibly loyal following of fans from his long-running satirical news program on Comedy Central.

There should be no worries for folks who aren’t a fan of the over-the-top partisanship and hyper-abrasive interview style that have been the hallmarks of “The Colbert Report,” though. The Colbert of the fake news show is a caricature, a satirical character that Colbert has confessed won’t be making its way to his new home with the “Late Show.”

The “Late Show” isn’t even the only late night program on CBS that’s getting itself a new host. Craig Ferguson has hosted “The Late Late Show” since 2005, but he’s also heading off for greener pastures, with his final show having aired late last year. The show, as they say, must go on, though, and English comedian James Corden will be putting his own quirky mark on late night TV starting Monday, March 23.

NBC and CBS have long battled for late night audiences, and with the shakeup that started a year ago finally winding down, there’s a lot of new late night hosts out there for audiences to check out.

Fargo-ne: “Fargo’s” story may have wrapped itself up with a satisfying conclusion, but when your show is such an Emmy darling, you don’t let it go after just one season.

The first season of the critically acclaimed drama, which was loosely based on the 1996 movie of the same name, starred Billy Bob Thornton (“Love Actually,” 2003), Allison Tolman (“Prison Break”), Colin Hanks (“Dexter”) and Martin Freeman (“Sherlock”). It took home Emmys for Outstanding Miniseries and Outstanding Direction, but with its story concluded, it would seem that there was nowhere left for it to go.

Luckily for “Fargo” fans, anthologies have staged a comeback, and while its second season will focus on new characters and new locations, it will still tie into the show’s overall meta-plot that was built up over the first season.

Premiering this fall on FX, this second season of “Fargo” has already lined up two of its stars. Kirsten Dunst (“Spider-Man 3,” 2007) and Jesse Plemons (“Breaking Bad”) have signed up to headline the new season.

Set in and around Fargo, N.D., the plan for “Fargo’s” future is for each season to be set in a different era with different characters and stories, all loosely tied together. This second season will explore the “Sioux Falls incident,” an event from 1979 that was mentioned several times in the first season but never explored further.

It was one of TV’s hottest new shows last season, leaving season 2 some pretty big shoes to fill. “Fargo’s” second outing premieres this fall on FX.

A jolly good time: PBS is expanding its stable of British imports.

The public broadcaster’s “Masterpiece” has seen explosive growth in audience numbers in recent years, thanks largely to the enormous popularity of “Downton Abbey,” and now another costume drama from across the pond is making its way to our shores.

“Grantchester’s” six-episode first series was a hit for ITV over in the U.K., and a second one is reportedly in the works. “Grantchester” premieres Sunday, Jan. 18, on PBS, immediately following a new episode of “Downton Abbey.”

Starring James Norton (“Happy Valley”), Robson Green (“Being Human”) and Morven Christie (“Monday Monday”), “Grantchester” is the story of an Anglican priest (Norton) who sidelines as a sleuth, assisting the often-grumpy local detective (Green) with cases in their sleepy little village.

Being based off of “The Grantchester Mysteries” series of short stories by James Runcie sure doesn’t hurt, either. With a planned six-volume collection of short stories being penned by the author, the show has a lot of puzzling material to base itself off of.
“Grantchester” makes its way to PBS’s expanded “Masterpiece” the evening of Sunday, Jan. 18.