PBS Station Services chief to exit next week

Joyce Herring, s.v.p. of station services for PBS, is leaving the network Oct. 31, President Paula Kerger announced today in an email to station executives. Kerger attributed Herring’s¬†departure “to a series of unexpected circumstances requiring her immediate attention.” Herring, who joined PBS in 2007, is the third senior executive to depart in the past month. John McCoskey, the network’s top engineer, recently¬†left to join the Motion Picture Association of America; Jason Seiken, head of digital media, took a position with the Telegraph Media Group in London.