CREATE TABLE table_19693 ("Date" CLOB, "Episode" FLOAT, "Performer 1" CLOB, "Performer 2" CLOB, "Performer 3" CLOB, "Performer 4" CLOB)

Who was perfomer one on 30 January 1988?
SELECT "Performer 1" FROM table_19693 WHERE "Date" = '30 January 1988'
SELECT "Performer 1" FROM "table_19693" WHERE "Date" = '30 January 1988'