Back from the almost-dead for a second season, Unforgettable (1.3/4) returned last night to anchor CBS’ summer Sundays. The police procedural starring Poppy Montgomery as the remembers-everything Detective Carrie Wells and Dylan Walsh as Lt. Al Burns, started off its new 13-episode run down 55% from the 2.9/8 that its Season 1 premiere drew nearly two years ago. However, a lot has changed for Unforgettable since that September 20, 2011 premiere: The show, which was second in its time slot last night and tied with a Bob’s Burgers encore for the fifth highest rated show of the Big 4’s Primetime, has shifted from Tuesdays to Sundays, from a 10 PM time slot to 9 PM, and from being in season and having NCIS: LA as a lead-in to the summer with Big Brother as its lead-in now. While hitting a series low last night, Unforgettable, which CBS cancelled in May 2012 and then resurrected a month later, certainly bested its time-slot predecessor, up 160% in the adults 18-49 demo from encores of The Good Wife previously in the 9 PM Sunday slot this summer. With 7.02 million watching, it was also up 120% in viewers over Good Wife’s averages. With a cameo by Montgomery, Big Brother (2.2/7) kicked off the originals on CBS on Sunday. The highest-rated show of the night fell 12% from its July 22 episode. CBS started the night with a 60 Minutes (1.0/4) repeat, which was the most-watched show on Sunday night with 8.23 million viewers. With a 1.3/4, CBS tied with Univision for the top spot overall in the demo and was No. 1 among viewers with 6.665 million.

The season finale of Celebrity Wife Swap (1.1/4) was a musical throwback, with singers Gerardo Mejia and Sisqo exchanging families for a week. While up 10% from last week, the reality show cratered 42% among the key demo from last year’s 9 PM season-ender on January 31, 2012. With contestants dropping like flies as Whodunnit? (1.1/3) heads towards its August 18 Season 1 finale, the ABC murder mystery reality show also rose 10% from its July 22 show to match its best result since its June 23 debut.

NBC’s only original of the night was Crossing Lines (0.5/2). The freshman Euro-based crime drama was flat with its July 22 show to tie a season low.

Fox was all repeats last night