Lagardère Studios Distribution sold Tandem to Discovery in Italy. Originally produced by DEMD Productions for France 3, Tandem is a police drama about two detectives who have to set aside their differences to work as a unit. The series has previously been sold to RTBF for Belgium and TV5 Monde. Tandem stars Astrid Veillon, Stéphane Blancafort, Piétrick Tournier, and Nelly Lawson, among others.