NBC News has signed on David Axelrod as a senior political analyst, appearing on both NBC News and MSNBC. Axelrod is a former senior advisor to president Barack Obama, as well as a strategist for his 2008 and 2012 campaigns. He has previously appeared on NBC and MSNBC a number of times as a guest.

Chris Polos has been named senior vice president of operations at Simulmedia, which sells TV advertising using data and internet methodologies. Polos had been vice president and general manager of media at VeriFone.

Michael Jackson’s son Prince Michael Jackson will appear on “Entertainment Tonight” throughout the week as a reporter, interviewing actors James Franco and Zach Braff and director Sam Raimi about the movie “Oz the Great and Powerful.” The 16-year-old Jackson also received on-air tips from reporter Brooke Anderson.

Experiential agency All Terrain has brought in Karen Curran, naming her senior manager of talent management. Curran previously ran her own consultancy, HC Resources.

Discovery Communications has made three promotions, naming Scott Felenstein and Sharon O’Sullivan executive vice presidents of national ad sales and Scott Kohn senior vice president of regional ad sales. Felenstein and O’Sullivan were previously senior vice presidents, while Kohn had been vice president of ad sales for the Midwest region.

Craig Parks has been named senior vice president of digital and live programming at Participant Media, which produces movies and TV shows. Parks was previously senior vice president of digital media and alternative content at IFC.

Former baseball player Alex Cora has joined ESPN and ESPN Deportes as an analyst, appearing on “Baseball Tonight,” “Beisbol Esta Noche” and “SportsCenter.” During his 14-year career Cora played with the Dodgers, Indians, Red Sox, Mets, Rangers and Nationals.

Hearst Magazines has named Kassie Means publisher and chief revenue officer at Woman’s Day, reporting to women’s lifestyle group publishing director Patricia Haegele. Means will also continue as publisher and chief revenue officer for Country Living.

Forbes Media has named William Adamopoulos chief executive officer for Asia, and he’ll also be president and publisher of Forbes Asia. Adamopoulos joined Forbes in 1999 and helped set up its Singapore office.

Lisa Schwarzbaum, the longtime Entertainment Weekly film critic, officially leaves the title this week after accepting a buyout, one of many offered by parent company Time Inc. In a farewell to readers Schwarzbaum wrote that her future plans include a book, an online project, speaking engagements on pop culture and her dog.

Andre Leon Talley, a longtime contributor at Vogue magazine, is leaving the title to focus on TV, according to The New York Post. Talley is reportedly working on a late-night program with producer Ben Silverman.

Nature Conservancy magazine has named Matt Jenkins senior editor, working with editor in chief Curtis Runyan. Jenkins was previously a contributing editor at High Country News.

Business Insider has named Joe Weisenthal executive editor, a new position at the business news site. Weisenthal had been working as the site’s main financial blogger.

Lisa Sharples, president at the food web site Allrecipes.com, is leaving at the end of March to spend more time with her children, according to AllThingsD. Sharples joined the site in 2007, and before that she was at Classmates.com.

Dean Efkarpidis has been named vice president of finance at Yieldex, which handles revenue and inventory analytics for digital publishers. Efkarpidis was previously at the instant messaging software company Pivot Inc.

Tags: Andre Leon Talley, Curtis Runyan, David Axelrod, Dean Efkarpidis, Joe Weisenthal, Lisa Schwarzbaum, Lisa Sharples, Matt Jenkins, William Adamopoulos