CREATE TABLE table_52920 ("Year" FLOAT, "Show" TEXT, "Season" FLOAT, "Episode title" TEXT, "Episode" FLOAT)

Which show had a part 3 before 2011?
SELECT "Show" FROM table_52920 WHERE "Year" < '2011' AND "Episode title" = 'part 3'
SELECT "Show" FROM "table_52920" WHERE "Episode title" = 'part 3' AND "Year" < '2011'