title: The Hoover Sentinels
text: # The Hoover Sentinels
  
  The Hoover Sentinels was a radio concert series which was broadcast on NBC from 1927 to 1935. Sponsored by Hoover Vacuums, it was sometimes heard as Madame Schumann-Heink, Hoover Sentinels Serenade, Sentinels Serenade or Hoover Sentinels .
  
  The 30-minute program initially aired on Sunday evenings at 10pm and later on Sunday afternoons at 5pm. In 1934-35 it was in the top ten of the highest-rated radio programs.
  
  The program's vocalist was contralto Ernestine Schumann-Heink, who also was heard on Enna Jettick Melodies. In 1934, she also did a 15-minute Sunday evening series for Gerber's baby food.
  
  When The Hoover Sentinels came to an end in 1935, the 5pm timeslot was taken over by The General Motors Hour.
  
  