This is how you add a video to iTunes as a TV Show with AppleScript. Save it as "add_to_iTunes.scpt" using /Applications/Utilities/AppleScript Editor Run it with "osascript add_to_iTunes.scpt /absolute/path/to/video/file.mp4"

add_to_iTunes.scpt

on run {input}
    tell application "iTunes"
        set newFile to input as POSIX file
        set newAddition to (add newFile)
        tell newAddition to set video kind to TV show
    end tell
end run