I don't see any remarkable change in entertainment. Except the invention of more advanced 3d video games and more science fiction entertaining movies. Sports is like the same as before. Not any new dynamism have been invented. More entertaining channels have been launched. Some funlands have invented more thrilling rides. The focus is more on value adding, rather than completely new entertainment source.
Well the sophistication of televisions and surround sound has hurt the movie industry (doesn't help that they've hike up admission). If people do not go to the movies that hurst the movie industry in a big way. One way the movie industry has remedied that is by producing bigger budget movies in hopes of drawing people in. Most of the times it does not work.