nachtmagazin is the nightly news broadcast of German ARD network's daily news magazine tagesschau, produced in Hamburg.
On November 11, 2009, after the show reported on Sesame Street's 40th anniversary, with focus on Sesame Street Day in New York City, Ernie made a surprise appearance in the studio.
While talking to host Ingo Zamperoni (an avowed Sesamstrasse fan since age four), he confused the show with another, excused Bert (who was busy sorting his paper clip collection), accepted chocolate cake on behalf of the show, sang a short rendition of "Quietsche-Entchen" to his best pal, and announced the weather.