Mad Men Season 5 TV RatingsThe long wait paid off for Mad Men. Last night’s Season 5 premiere of the AMC period drama averaged 3.5 million viewers. That was up 21% from Season 4’s debut exactly 20 months ago and the series’ largest audience ever. The fifth-season premiere posted series highs in all key demos. That includes adults 25-54, in which it delivered 1.7 million viewers, up 17% from the Season 4 opener; and adults 18-49 (1.6 million), up 30%. “Almost five years ago, with a focus on distinction and quality, AMC launched Mad Men as the first series in its commitment to original scripted dramatic television,” said AMC president Charlie Collier. “Mad Men set the bar high and we are incredibly proud that it continues to engage audiences looking for unexpected, unconventional and uncompromising television.” For the night, Mad Men was watched by a total of 4.4 million viewers in the premiere 9 PM airing and the 11 PM encore.