CREATE TABLE table_61773 ("Show" CLOB, "Date" CLOB, "Official ratings  ( millions ) " FLOAT, "Weekly rank" CLOB, "Share" CLOB)

Which show aired on 19 april?
SELECT "Show" FROM table_61773 WHERE "Date" = '19 april'
SELECT "Show" FROM "table_61773" WHERE "Date" = '19 april'