Swiss internet TV provider Zattoo has extended its partnership with German commercial broadcaster ProSiebenSat.1 – adding pay TV channels ProSieben Fun, Sat.1 Emotions, Kabel Eins Classics and wetter.com TV, all as live streams as part of the Zattoo Plus OTT package. Zattoo first launched in Denmark in 2007, and has since expanded to Switzerland, Spain, Germany, Norway, and the UK – which is still fairly confined since the platform is approaching its tenth birthday. We would have expected it to branch further across Europe by now and perhaps even into the US and Canada. However, Zattoo has had its fair share of legal clashes over the years which have stalled its progress somewhat – most notably Universal, Warner Brothers, the…