ɪn nˈaɪntiːnhˈʌndɹɪd nˈaɪnti θɹˈiː hiː wʌz ɐpˈɔɪntᵻd tə ðə tʃˈɛɹ fɔːɹ mˈiːdiːə ɛsθˈɛɾɪks ænd hˈɪstɚɹi æt ðə hˈʌmboʊldt jˌuːnɪvˈɜːsᵻɾi ʌv bɜːlˈɪn.
In 1993 he was appointed to the chair for Media Aesthetics and History at the Humboldt University of Berlin.