Gute Zeiten, schlechte Zeiten is a german daily soap. It is running since 1992 on RTL, with more than 6000 episodes released. Over the last years a lot of german actresses have been on the playboy cover.
The first actress was Sandra Keller back in april 1996, followed by Saskia Valencia 5 years later. Nina Bott has even been twice in the playboy. The first time was 2002. Then 10 years later, with silicone breasts, after the birth of her first child.
They have been followed by the Gute Zeiten Schlechte Zeiten actress Sila Sahin back in 2001 and the GZSZ star Ulrike Frank in july 2014. She is part of the daily soap since 2002.
Last but not least Isabell Horn aka Pia Koch and Iris Mareike Steen have been on the german playboy cover in 2015 and 2016 :)