There were original shows across the board on the networks last night with football, winter returns and premieres. Trainer Jillian Michaels rejoined The Biggest Loser (2.9/7) as the weight-loss series returned to TV with its Season 14 premiere. Centering on child obesity, this season’s two-hour debut Sunday was up a solid 21% from the 2.4/6 rating of last season’s January 3, 2012 premiere. NBC began the night at 7 PM with a two-hour Sunday season debut of Dateline NBC (1.5/4); the newsmagazine was up 20% from its January 8 airing.

Fast nationals for Fox’s Sunday primetime are approximate due to live football. The NFL playoff opener between Washington and Seattle and postgame show pushed the network’s animation block back to 8:03 PM, causing the rest of the night to slide. The game (12.1/32) pulled in an audience of 33.94 million, while the overrun and postgame show (7.6/19) garnered 19.29 million viewers in the 7:30 PM slot. After that, The Simpsons (4.4/11) was back with its first new show in three weeks as was Bob’s Burgers (3.1/8). (Three weeks ago, both saw pre-emptions due to the Sandy Hook school shooting memorial service in Newtown, which led to 1.9/5 and 1.2/3 ratings, respectively.) Compared with the last uninterrupted airings December 9, last night’s The Simpsons was up 29% and Bob’s Burgers was up 48%, the latter’s highest rating since it debut two years ago. Family Guy (3.5/8) was up 40% from its last original show two weeks ago as was American Dad (2.8/7). With an average audience of 13.676 million, Fox won the night in total viewers and adults 18-49.

ABC kicked off the night with a Once Upon A Time (0.9/2) repeat before returning with the first new episode (3.1/8) in five weeks. The fairy tale drama was flat with its last original airing. Revenge (2.3/5) was also back Sunday with original airings after five weeks, with the nighttime soap drama dipping 4% from its last original five weeks ago. Happy Endings (1.0/3) fell 23% from its last original airing on December 18 to hit a series low. Don’t Trust The B—- In Apt 23 (0.9/2) was down 18% from its December 18 airing and tied for a series low.

A new 60 Minutes (1.4/4) started the night for CBS. The news magazine slid 26% from its last original airing on December 9. That was followed by a repeat of Person Of Interest (1.3/3). Then it was the return of The Good Wife (1.8/4), with legal drama flat with its last original show of its fourth season on December 2. The Mentalist (2.1/6) on the other hand was up 31% from its last original December 9 and matched the season high of its September 30 fifth-season premiere.

Deadline's Dominic Patten - tip him here.