CREATE TABLE table_33832 ("Season" TEXT, "Episodes" FLOAT, "First airdate" TEXT, "Last airdate" TEXT, "Nielsen ranking" TEXT)

How many episodes were in the season that ended on April 29, 1986?
SELECT AVG("Episodes") FROM table_33832 WHERE "Last airdate" = 'april 29, 1986'
SELECT AVG("Episodes") FROM "table_33832" WHERE "Last airdate" = 'april 29, 1986'