CREATE TABLE table_26053 ("Episode #" FLOAT, "Season #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original airdate" TEXT, "Production code #" FLOAT)

What is the highest episode number written by Harry Winkler?
SELECT MAX("Episode #") FROM table_26053 WHERE "Written by" = 'Harry Winkler'
SELECT MAX("Episode #") FROM "table_26053" WHERE "Written by" = 'Harry Winkler'