During his time as a reporter for the
Children's radio he was discovered in 2001 as a reporter for the newly designed children's TV report format
Willi wills wissen. 180 episodes have been produced since it started broadcasting in 2002. Since then, the formats
Willis VIPs (since 2005 with 19 episodes),
Willis Quiz Quark Club (since 2005 with 80 episodes),
Gute Frage, nächste Frage (since 2007 with 50 episodes),
Willi wills wissen A–Z Die bunte Buchstabenrevue (since 2010 with 52 episodes),
Ein guter Grund zu feiern (since 2011 with 9 episodes) and since 2018
Gut zu wissen (weekly broadcast) was added. Many series are produced by
megaherz Film und Fernsehen on behalf of
Bayerischer Rundfunk, broadcasting stations are
Das Erste,
KiKA,
Bayerisches Fernsehen,
WDR Fernsehen,
hr-fernsehen,
MDR Fernsehen,
Arte and
3sat. In December 2010, the
ZDF announced the commitment of Weitzel as a moderator of a broadcaster about the Catholic holidays. The series
Ein guter Grund zu feiern (since 2011 with 9 episodes) was produced as an order production of Weitzels company
Welterforscher Film und so weiter for ZDF. The first issue of the series
Ein guter Grund zu feiern was broadcast on
Epiphany 2011 with
Sven Hannawald, further episodes at
Feast of Corpus Christi with
minh-Khai Phan-Thi, to
Assumption of Mary with
Bettina Wulff and
All Saints Day with
Johanna Klum. In 2012, episodes were shown on Epiphany with
Karlheinz Brandenburg, to Feast of Corpus Christi with
Klaus Allofs, to Assumption of Mary with
Jörg Pilawa and at All Saints Day with
Thomas Huber. In 2013, the last episode of the series with Weitzel was sent to Epiphany. At Feast of Corpus Christi, the program was taken over by
Jordana Schmidt, from All Saints she was moderated by
Andreas Korn. To Feast of Corpus Christi 2018 took over
Nikodemus Schnabel. ==Films==