TV Ratings: 'Whodunnit?' Opens Soft, 'Wife Swap' Hits Low With Palin and Rivers

ABC's unscripted Sunday block gets a quiet summer launch, while NBC drama import "Crossing Lines" falls flat with two-hour opener.
ABC/Randy Holmes

Animation encores topped the night in the key demographic, with Fox tying ABC for a demo win with an average 1.1 rating among adults 18-49. Fox also averaged 2.5 million viewers for its three-hour Sunday block.

Between repeats of America's Funniest Home Videos and Castle, ABC launched the summer cycle of Celebrity Wife Swap and premiered reality competition Whodunnit?. Wife Swap, featuring Bristol Palin and Joan and Melissa Rivers, pulled a 1.3 rating among adults 18-49. That's down three-tenths of a point from its most recent original for a series low. Whodunnit? (1.3 adults) opened softly at 9 p.m., retaining its lead-in. ABC averaged 4.0 million viewers.

PHOTOS: Summer TV Rundown

NBC summer import Crossing Lines opened low, pulling in just a 0.7 rating among adults 18-49 -- though the series did grow in its second hour. The network averaged a 0.8 rating among adults 18-49 and 4.2 million viewers for the night.

Encores averaged a 0.6 adults rating and 4.9 million viewers on CBS.

Both Univision and Telemundo averaged a 0.7 rating among adults 18-49, with the former pulling 2.1 million viewers and the latter earning 1.8 million.