“Having successfully completed the sale of All3Media to Discovery Communications and Liberty Global, I have determined that this is the right time to leave the company to pursue a new challenge,” CEO Farah Ramzan Golant says today after the $902M deal closed. Discovery and John Malone’s Liberty Global agreed in May to forge a 50:50 joint venture to run the UK-based TV, film, and digital content company  — and have vowed to let it remain a stand-alone entity with an independent executive management team. With Golant’s departure,  Jane Turton was promoted to Managing Director from COO to oversee the transition while the company conducts what it calls “a global search” for a new CEO. All3Media has operations in UK, USA, The Netherlands, Germany and New Zealand

Meanwhile All3Media co-founders Steve Morrison, Jules Burns and David Liddiment said that they will retire from the board, although Morrison will continue as a special advisor to the directors from Discovery and Liberty Global.

Discovery chief David Zaslav, who’s vigorously trying to expand his company’s overseas businesses, reiterated the partners’ commitment to help All3Media “continue innovating and delivering even greater stand-out content to its clients and partners across the globe.” And Liberty Global CEO Mike Fries says that they aim to “create compelling, localized content for domestic markets.” Liberty Global is the largest international cable company.