As drama, gossip, and industry chatter has swirled around the 9 pm hour in cable news — with MSNBC’s Rachel Maddow now scaling back her time on air, while CNN has yet to settle on a permanent replacement following Chris Cuomo’s ouster — the anchor in that time slot over at Fox News has just broken a record. As of Thursday, April 21, Fox host Sean Hannity is now the longest-running primetime cable news host in TV history, surpassing the record previously held by the late Larry King. For more than 25 years, Hannity has been a mainstay of the...