The Walking Dead’s Season 9 mid-season finale was officially the lowest rated mid-season finale in series history. Per Variety, Sunday’s “Evolution” episode netted 5.1 million viewers and a 2.0 Nielsen rating in the key adults 18-49 demographic. This is down from Season 8’s mid-season finale, which brought in 7.9 million viewers and a 3.4 rating: this marks a 35% decrease in total viewers, and 41% decrease in the demographic. The highest mid-season finale ratings are held by the Season 5 episode, which brought in 14.8 million viewers, and earned a 7.6 rating. Continue reading…