Besides the atmosphere, there are other advantages to being at the stadium and watching live. An example would be with mid to long level pass plays. On these plays, at the game you can see the quarterback and the receivers at the same time (especially in the upper levels). Seeing the whole field live, you can anticipate (and see) a receiver getting open. You see the quarterback realizing this, you see throw, the entire flight of the ball, the receiver running towards the spot where the ball will end up, and the result of the play (a catch, a drop, an interception, a poorly thrown ball...). And you can see this all in one view. On TV you'll see the quarterback make the throw, and then the camera scan to the receiver, or another camera picking the receiver up. On the clear TV, you won't see the play actually developing to experience the anticipation of the result all in one view.