He's watched all the program, and at the end station, he rises up to pick up what he thinks is his luggage, and his head hit the curtain rod, and he realized he is in his own living room.
番組を最後までずっと見ていて 終着駅に着いたところで 席を立ち 荷物を手に取って それからカーテンレールに 頭をぶつけてはじめて 自分のいるのが列車の中じゃないことに 気付いたそうです