File This Nov. 11, 2012 file photo shows Candlestick Park is shown before an NFL football game between the San Francisco 49ers and the St. Louis Rams in San Francisco.Douglas H. SmithTop of pageAbstractMild traumatic brain injury (TBI), which is defined as a head trauma resulting in a brief loss of consciousness and/or alteration of mental state, is usually benign, but occasionally causes persistent and sometimes progressive symptoms. Whether a threshold for the amount of brain injury and/or individual vulnerability might contribute to the development of these longterm consequences is unknown.

Joe Football Fan will watch the Super Bowl and all of its $3 millionplus commercials on the big TV screen at the same time he is watching the streaming coverage on his phone or PC, which will include a bunch of extra stuff such as additional camera angles, sideline updates and ingame analysis. In other words, it will be complementary.At least that the plan. And it likely to work out