Edie Falco, Laura Linney

Nurse Jackie, The Big C, and The Borgias will kick off new seasons on April 8, Showtime Entertainment President David Nevins announced Thursday at the winter TV previews.

Get the scoop on the midseason must-see new shows

Nurse Jackie
's fourth season premiere kicks off the night at 9/8c, followed by The Big C at 9:30/8:30c and The Borgias at 10/9c.

The new season of Nurse Jackie finds its titular character (Emmy winner Edie Falco) facing consequences as she attempts to confront her painkiller addiction and repair her broken marriage. Testing Jackie's patience at the hospital is a new administrator played by Bobby Cannavale.

The Big C's third season will deal with Cathy (Laura Linney) as she copes with seeing the ghost of Paul (Oliver Platt) in the Season 2 finale. The Borgias' second season will focus on the consolidation of the power of Pope Alexander (Jeremy Irons) as he faces political opposition. But he will also increasingly see his children trying to defy him. (Joking about the sizzle reel shown to reporters, Nevins quipped: "Take that, Downton Abbey!")

Also on tap for Showtime in 2012 is a series of documentaries. The first, which doesn't have an official airdate, is tentatively titled The World According to Dick Cheney, a film by Oscar and Emmy winner R.J. Cutler (The War Room, A Perfect Candidate) that tracks the life of "arguably the most powerful non-president in last 50 years," Nevins said.

Check out more news from the winter TV previews

Other documentaries in development include films about hip-hop mogul Suge Knight, directed by Training Day's Antoine Fuqua, and Richard Pryor, directed by Marina Zenovich. "I feel like we can have real impact with documentaries," Nevins said. "I want the most interesting filmmakers. I'm looking at how we can make programming that has impact."

Other highlights from Nevins' executive session:

On Dexter's controversial decision for Debra (Jennifer Carpenter) to confess her non-brotherly love for Dexter (Michael C. Hall): "I'm aware that there's a certain taboo, despite the fact that they're not genetically related, but [this is] something that has been building over a number of years," Nevins said. "If you go back and look the past couple seasons, it's an idea that has informed how they've done the show for a long time." As for Deb seeing Dexter kill Doomsday killer Travis (Colin Hanks)? "I think there's a very clear trajectory [for] the next two seasons and it's going to help to write with that endgame in mind," Nevins said. "I've been pushing to shake up [Dexter's] formula a bit... so he's not such a lone wolf."

What's next for Homeland?
Nevins admitted that he's only had early conversations with creators Howard Gordon and Alex Gansa, but he said that the next season will not pick up right where the first left off. Additionally, Nevins said the relationship between Carrie (Claire Danes) and Brody (Damian Lewis) has "only just begun. ... There's an enormous amount unresolved, and I know one way or another that will be a central issue in Season 2."

Nevins is bullish on House of Lies and Episodes.
Nevins said that he's interested to see how the audience responds to Lies, which premiered to big numbers this week. "I'm curious to see how it starts to resonate in the back half of season," he said. "There is deceptive depth to those characters." Meanwhile, Nevins said the network will throw its full weight behind promoting the second season of Episodes, which will feature nine installments. "I think it has real potential," Nevins said. "I didn't expect it to get embraced so quickly."

The Franchise will continue. Nevins said Showtime is deep in conversations with a "very interesting" new Major League Baseball team to follow for the series' second season.