Question: Who established himself as the acclaimed host of televisions show and was in a Austrian-West German musical comedy film?

Context paragraphs:
...und sowas muß um acht ins Bett: ...und sowas muß um acht ins Bett is a 1965 Austrian-West German musical comedy film directed by Werner Jacobs and starring Peter Alexander, Gitte Hænning and Ingeborg Schöner.

Knall and Fall as Detectives: Knall and Fall as Detectives (German: Knall und Fall als Detektive) is a 1953 Austrian-West German comedy film directed by Hans Heinrich and starring Hans Richter, Rudolf Carl and Ingrid Lutz.  It was made as a sequel to the 1952 film "Knall and Fall as Imposters".

Help, My Bride Steals: Help, My Bride Steals (German:Hilfe, meine Braut klaut) is a 1964 Austrian-West German comedy film directed by Werner Jacobs and starring Peter Alexander, Cornelia Froboess and Gunther Philipp.  A man marries a woman soon after meeting her, unaware that she is a kleptomaniac.

Anna Louise and Anton: Anna Louise and Anton (German: Pünktchen und Anton) is a 1953 Austrian-West German comedy film directed by Thomas Engel and starring  Paul Klinger, Hertha Feiler and Heidemarie Hatheyer.  It was one of the ten most popular films released in Austria that year.

The Bath in the Barn (1956 film): The Bath in the Barn (German:Das Bad auf der Tenne) is a 1956 Austrian-West German comedy film directed by Paul Martin and starring Sonja Ziemann, Paul Klinger and Herta Staal.  It is a remake of the 1943 film of the same title.

Peter Alexander (Austrian performer): Peter Alexander Ferdinand Maximilian Neumayer (30 June 1926 – 12 February 2011), commonly known as Peter Alexander, was an Austrian actor, singer and entertainer.  His fame emerged in the 1950s and 1960s through popular film comedies and successful recordings, predominantly of Schlager and operetta repertory.  Later, Alexander established himself as the acclaimed host of television shows.  His career as a live singer touring the German language countries lasted until 1991, while he continued his television work until 1996.

'38 – Vienna Before the Fall: '38 – Vienna Before the Fall (German: 38 – Auch das war Wien ) is a 1987 Austrian-West German co-produced drama film directed by Wolfgang Glück.  It was nominated for the Academy Award for Best Foreign Language Film at the 59th Academy Awards.  The German title is literally translated as '38 - That, too, was Vienna', but it is also known in English as <nowiki>'</nowiki>38 - Vienna Before the Fall.  It is set in Vienna in 1937-38 at the time of the Anschluss.

The House of Three Girls (1958 film): The House of Three Girls (German:Das Dreimäderlhaus) is a 1958 Austrian-West German musical film directed by Ernst Marischka and starring Karlheinz Böhm, Rudolf Schock and Magda Schneider.  It is based on the operetta "Das Dreimäderlhaus".

A House Full of Love: A House Full of Love (German: Ein Haus voll Liebe) is a 1954 Austrian-West German romantic comedy film directed by Hans Schweikart and starring  Gertrud Kückelmann, Michael Cramer and Erni Mangold.

Come to Vienna, I'll Show You Something!: Come to Vienna, I'll Show You Something!  (German: Komm nach Wien, ich zeig dir was!)  is a 1970 Austrian-West German comedy film directed by  Rolf Thiele and starring  Tanja Gruber, Veit Relin and Andrea Rau.  A sex comedy, it presents several events in the history of Vienna.

Supporting paragraphs: ...und sowas muß um acht ins Bett Peter Alexander (Austrian performer)
Answer: Peter Alexander