It’s not new news that PBA enjoyed a big spike in TV ratings during the 2014-15 season: it put out news releases and I wrote about the higher ratings in stories here and here. Officially, PBA ratings on ESPN for 2014-15 were up 23 percent over the 2013-14 season. (There are no ratings for CBS Network programming.) What is just as important — maybe even more important — is that PBA’s viewer demographics were much younger in 2014-15, PBA reported in this news release....