CREATE TABLE table_29100 ("Series #" FLOAT, "Episode #" FLOAT, "Title" TEXT, "Director" TEXT, "Writer" TEXT, "Original airdate" TEXT)

What was the original air date of the episode written by michael glassberg?
SELECT "Original airdate" FROM table_29100 WHERE "Writer" = 'Michael Glassberg'
SELECT "Original airdate" FROM "table_29100" WHERE "Writer" = 'Michael Glassberg'