The six-figure brief involves corporate affairs, media relations and sponsorship PR.
MMD will also undertake media relations work in Russia, starting in mid-October, to raise awareness of DNE's channels.
DNE transmits five channels in Poland, Hungary and Romania: Discovery Channel, Animal Planet, Discovery Civilisation, Discovery Sci-Trek and Discovery Travel & Adventure.
In addition, the agency is tasked with ensuring accurate translation of its programme information in TV listings magazines and accurate dubbing/sub-titling of its programmes in each country.
The agency reports to DNE's London-based corp comms and PR manager for EMEA Kirsty Barr.