This is the cornerlogo of Puls4 since September 5th 2016.
<a href="//commons.wikimedia.org/wiki/User:ZellmerLP" class="mw-redirect" title="User:ZellmerLP">User:ZellmerLP</a>
<a href="//commons.wikimedia.org/wiki/File:Cornerlogo_Puls4_2016.png" title="File:Cornerlogo Puls4 2016.png">File:Cornerlogo Puls4 2016.png</a> ProSiebenSat.1Puls4 / ProSiebenSat1 Media SE