TV Ratings: Small ‘Undateable’ live uptick, but ‘NCIS’ tops ‘Voice’ on Tuesday

Fast National ratings for Tuesday, May 5, 2015.

An hour-long live episode of “Undateable” got a small uptick among young viewers as NBC split Tuesday night in the key demo, with CBS staging its regular Tuesday domination overall, led by “NCIS.”

Despite much hype and high-profile guest stars, the “Undateable” event actually lost viewers week-to-week, but that was more a product of the continued late-season swoon for NBC's “The Voice.”

“The Voice” hit a series low on Tuesday, as did CBS' finale for “Person of Interest.”

Among other Tuesday notables, ABC's “Marvel's Agents of S.H.I.E.L.D.” ticked up, as did FOX's “New Girl” finale, while The CW's “The Flash” was down a tiny bit. All changes were pretty cosmetic.

Let's get to the numbers…

Among adults 18-49, ABC and CBS both averaged a 1.6 rating for Tuesday night, tops in the key demographic. ABC was third with a 1.3 key demo rating. Once again, The CW topped a new FOX lineup, averaging a 1.1 key demo rating to the 1.0 key demo rating for FOX.

Overall, though, CBS won comfortably with an estimated 11.9 million viewers and a 7.6 rating/13 share for Tuesday primetime. NBC was a distant second with 6.59 million viewers and a 4.2/7, followed closely by ABC's 6.24 million viewers and 4.0/7. There was a big drop to The CW's 1.7/3 and 2.79 million viewers and to FOX's 1.6/3 and 2.67 million viewers.

8 p.m. – CBS began its overall primetime sweep with 14.235 million viewers and a 2.0 rating among adults 18-49, topping NBC's “The Voice” (8.75 million and a 1.9 key demo) in both measures. ABC's “Dancing with the Stars” was actually second overall with 10.13 million viewers and tied for third with a 1.4 key demo rating. The CW's “The Flash” averaged 3.64 million viewers and a 1.4 key demo rating, topping the 3.42 million viewers and 1.2 key demo rating for FOX's “Hell's Kitchen.”

9 p.m. – “NCIS: New Orleans” won the 9 p.m. hour with 13.25 million viewers and a 1.6 rating among adults 18-49. There was the usual huge drop to ABC's “Marvel's Agents of S.H.I.E.L.D.” in second with 4.48 million viewers and a 1.5 key demo rating. NBC's one-hour “Undateable” averaged 4.28 million viewers and a 1.3 key demo rating with a predictable drop at the half-hour. The CW's “iZombie” was fourth overall with 1.93 million viewers, but fifth with a 0.7 key demo rating, compared to FOX's “New Girl” (2.24 million and 1.1 key demo) and “Weird Loners” (1.59 million and a 0.6 key demo) finales.

10 p.m. – “Person of Interest” completed CBS' overall sweep with 8.21 million viewers for its season finale, but finished tied for second with a 1.1 key demo rating. NBC's “Chicago Fire” was second overall with 6.74 million viewers and ruled the hour with a 1.6 key demo rating. ABC's “Forever” finale was third with 4.1 million viewers and tied for second with a 1.1 key demo rating.

All ratings information comes from preliminary Fast National Nielsen data, which includes live and same-day DVR viewing. All numbers are subject to change.