Here's a handy thread listing every episode of The Twilight Zone, Season Four with links to the corresponding threads.
Episode 01 - In His Image
Episode 02 - The Thirty Fathom Grave
Episode 03 - Valley of the Shadow
Episode 04 - He's Alive
Episode 05 - Mute
Episode 06 - Death Ship
Episode 07 - Jess Belle
Episode 08 - Miniature
Episode 09 - Printer's Devil
Episode 10 - No Time Like The Past
Episode 11 - The Parallel
Episode 12 - I Dream of Genie
Episode 13 - The New Exhibit
Episode 14 - Of Late I think of Cliffordville
Episode 15 - The Incredible World of Horace Ford
Episode 16 - On Thursday We Leave For Home
Episode 17 - Passage on the Lady Anne
Episode 18 - The Bard