text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_142573_1 (channels VARCHAR, designation VARCHAR)
  ### Question:
  Name the channels when designation is pc700
  ### Answer:
  SELECT channels FROM table_142573_1 WHERE designation = "PC700"