I am trying to find an episode of the the twilight zone that was in black and white. It's premise is that a family goes about life but the father doesnt know he is dead. He finally realizes that he is, in fact, dead when his sneezes and his nose come off in his hand. The last line goes"Mater, pater won't be down for dinner, he's dead, you know. Please help me find this episode or let me know if it is from another series. Thanks, in advance.