Ratings Analysis: As 'Shark Tank' (0.48, -0.02) slipped to a new season low on ABC, Fox's 'WWE Smackdown' (0.52, +0.02) inched up and topped the night for the first time in over a month. 'Tank' was followed by an encore of '20/20' (0.30). In anticipation for its upcoming sequel, NBC aired the 2016 animated feature 'Sing' (0.39) and ended up improving from last week's edition of 'The Wall' (0.35). Despite the higher rating in the 8pm slot, 'Dateline' (0.32, -0.05) dropped by five-hundredths in the 10pm hour. CBS's holiday-themed 'The Greatest #AtHome Videos' (0.20/0.18) was a complete dud and got bested by a rerun of 'Blue Bloods' (0.24) that came after. The '89th Annual Hollywood Christmas Parade' (0.07) was one-hundredth stronger than the week-ago 'Nancy Drew' (0.06) on the CW.
Finals Update: 'Shark Tank' (+0.1) adjusted up.
(R) = repeat