UPDATE 4-Mediaset strengthens hand for European TV merger talks with Pro7 stake By: Reuters: Company News May 29, 2019 at 11:59 AM EDT * ProSieben CEO calls stake purchase a vote of confidence (Adds Vivendi developments, comment) Read More >> Related Stocks: Alphabet-A Amazon.com Discovery Communications Ictv Brands Inc Morgan Stanley Netflix Telecomunicacoes DE Sao Paulo ADR