CREATE TABLE table_55615 ("Network" TEXT, "8:00 PM" TEXT, "8:30 PM" TEXT, "9:00 PM" TEXT, "9:30 PM" TEXT, "10:00 PM" TEXT)

What is the network that plays ugly betty?
SELECT "Network" FROM table_55615 WHERE "8:30 PM" = 'ugly betty'
SELECT "Network" FROM "table_55615" WHERE "8:30 PM" = 'ugly betty'