Violinist Itzhak Perlman and Cantor Helfgot perform the popular Yiddish classic with Vaudeville roots “A Yidishe Mame” (A Jewish Mother) with a preface by singer and composer Neil Sedaka explaining the song’s history. Watch “Rejoice with Itzhak Perlman and Cantor Yitzchak Meir Helfgot” on Thurs. Aug. 28 at 9 pm on PBS.