- Jochen M. Köstler has been with the company as production manager since the beginning. In 2007, he was promoted to general production director, executive producer and deputy general manager. In his role as executive producer in Germany, he was responsible for successful formats such as "Der RTL Comedy-Adventskalender" and "Der RTL-Olymp." As head of Constantin Entertainment Serbia in 2010 and 2011, he produced top-rated shows like "Beat Your Host," "Come Dine With Me," "Home Makeover" and "Kitchen Nightmares" for the broadcaster PRVA in Belgrade. Since 2012, Jochen M. Köstler has been Constantin Entertainment's producer and since 2017 managing director.- IMDb Mini Biography By: Constantin Official Site Bio
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