 
 <prompt> Which of the following no be business partner of Ralph J. Roberts: Julian A. Brodsky or Tupelo? Given the previous question, write a context wey contain the answer. E fit be 1 - 20 sentences. Context: <response>: In 1963, Ralph J. Roberts, Daniel Aaron, and Julian A. Brodsky buy American Cable Systems from Jerrold Electronics for US $500,000. At that time, American Cable dey small for Tupelo, Mississippi with five channels and 12,000 customers. American Cable buy Storecast Corporation of America for 1965 wey be product placement firm. Dem buy Muzak franchise for Orlando, Florida as dem be Muzak client. 