CREATE TABLE table_22372 ("Episode" CLOB, "Broadcast date" CLOB, "Run time" CLOB, "Viewers  ( in millions ) " CLOB, "Archive" CLOB)

What is the broadcast date of the 16mm t/r episode?
SELECT "Broadcast date" FROM table_22372 WHERE "Archive" = '16mm t/r'
SELECT "Broadcast date" FROM "table_22372" WHERE "Archive" = '16mm t/r'