PRESS RELEASE. SITI Networks launches SITI PlayTop Android TV Set Top Box and iOS/Android Apps. NAGRA partners with SITI Networks to launch its first Android TV set-top box in a in a fully secure ecosystem. Cheseaux-sur-Lausanne, Switzerland and Phoenix, (AZ), USA – April 14, 2021 – NAGRA, a Kudelski Group (SIX:KUD.