Those anti-TV types don’t know what they’re missing. Last night, the death of the beloved Mrs. Landingham on The West Wing at the hands of a drunk driver was a shocker, and proof that a well-told story and an interesting character can be deeply affecting, no matter what the medium. It was handled in a brutally abrupt way, just as an unexpected and tragic death of a friend would be. There’s no foreshadowing, no big leadup. “Is she OK?” says Leo McGarry. “No. She’s dead,” says Charlie Young. The West Wing has the best writing on television, bar none. How do they keep doing that?