Is there some kind of weighted housing lottery at your university? If so, I think the juniors would have claimed the larger room automatically. My best friend and I were in a 5-bedroom suite with 3 seniors - all graduating mid-year - when we were sophomores. They had beautiful, big rooms; we had tiny broom-closets. We had fared pretty well for rising sophomores in the lottery, but seniors obviously (and fairly) had priority. We all paid the same amount. You shouldn’t feel any moral obligation to share your TV, however.