These viewers are measured only in the 18-49 category. There are likely even more viewers being added via DVR, but for purposes of this, we’re only talking about the key demo. Also, you only count if you watched it within a week of its original airing.
1) Modern Family- +2.2 million viewers
2) The Big Bang Theory- +1.9 million viewers
3) The Following- +1.7 million viewers
4) Revolution- +1.7 million viewers
5) Grey’s Anatomy- +1.6 million viewers
6) The New Girl- +1.4 million viewers
7) Criminal Minds- +1.2 million viewers
8) Elementary- +1.2 million viewers
9) Glee- +1.2 million viewers
10) The Office- +1.2 million viewers
11) Grimm- +1.2 million viewers
12) Once Upon A Time- +1.1 million viewers
13) Nashville- +1.1 million viewers
14) NCIS- +1.1 million viewers
15) How I Met Your Mother- +1.1 million viewers
16) Scandal- +1 million viewers
17) Revenge- +1 million viewers
18) Castle- +1 million viewers
19) Private Practice- +1 million viewers
20) 2 Broke Girls- +1 million viewers
21) Person of Interest- 1 million viewers
22) CSI- 1 million viewers
23) Family Guy- 1 million viewers
24) Parenthood- 1 million viewers
25) Hannibal- 1 million viewers
The Voice is the highest reality show, adding 0.8 million viewers. A few shows actually tracked less than 100K viewers, aside from Football, the only show that isn’t cancelled that tracked that low is America’s Funniest Home Videos.