user: ### NOW ANSWER:
Question: Phil Klemmer wrote all titles and production code is 3T6455. 
Columns: ['No. in series', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code', 'U.S. viewers (million)']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '" Chuck Versus the Intersect "', 'McG', 'Josh Schwartz & Chris Fedak', 'September24,2007', '276025', '9.21']
SQL:

assistant: SELECT "Title" FROM "Table" WHERE "Written by" = 'Phil Klemmer' AND "Production code" = '3T6455';