Novak's level seriously dropped and he better picks it up or the rest of the match could be shorter than that first set. Murray just seems so confident in his shots.
Murray's momentum is almost palpable. He's got the wind in his sails. He needs to be sure not to get too comfortable with his current strategy. Novak is a good problem solver.
Local affiliates can decide not to show the sports event that the network is covering - so some will not be showing the tennis if they believe that it will hurt them locally.