Tuesday's Broadcast Ratings: "The Year: 2020" Lifts ABC to Top Demo Spot By The Futon Critic Staff (TFC) Primetime Preliminary Fast National Nielsen Data (includes all DVR playback through 3:00 am) Here are the highlights of the 12 ad-sustained programs that aired in primetime on the broadcast networks last night (12/29/20): ABC (2.991 million viewers, #2; adults 18-49: 0.5, #1) led the demo race on Tuesday thanks to a rebroadcast of "To Tell the Truth" (3.355 million viewers, #4; adults 18-49: 0.5, #T1) and its annual special "The Year: 2020" (2.809 million viewers, #5; adults 18-49: 0.5, #T1). CBS (4.095 million viewers, #1; adults 18-49: 0.4, #2) was the most-watched network with its all-repeat lineup of "NCIS" (4.572 million viewers, #1; adults 18-49: 0.4, #T3),