Jackson joined the documentary broadcaster two years ago from Yahoo! Europe (PRWeek, 11 March 2005), but the channel's US bosses have divided DNE into UK and EMEA functions, leaving Jackson and her boss Discovery Europe MD Robin Paxton out in the cold.
Jackson, who left DNE's West London headquarters last week, told PRWeek she was now looking at freelancing opportunities.
Corporate comms manager Simon Avis now takes charge of the EMEA region with Kirsty Barr covering the UK.
Avis reports to EMEA marcoms director Shirley Henry, and Barr to SV-P marketing (UK) Rebecca Rormark.
Frank PR, Braben and Henry's House remain on UK press and PR manager Lynn Li's lifestyle roster, but DNE is no longer working with Lexis PR, Launch Group and Shine Communications (PRWeek, 10 Feb 2006).