>ESPN has been increasingly pushing a progressive narrative on its viewers,

This is certainly the narrative I've heard Limbaugh advance of late, but this[0] NPR post has stats that my offer another explanation:

"The Wall Street Journal reports the prime-time audience of adults under 50 for the top four broadcast networks, which schedule dramas, comedies, and so-called reality shows in that slot, is down 9.2 percent from last year's fall TV season."

"But the cable news networks...up 39 percent in a three-week span this fall from the same time period during the last presidential election."

"Movie attendance since Labor Day is down 16 percent"

[0]http://www.npr.org/2016/10/29/499801719/stop-lying-america-y...