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Fox’s ‘Masked Singer’ Sees Biggest Ever 3-Day Viewing Lift for a Reality Show Debut

Oddball competition adds 2.9 million viewers 72 hours after premiering

Fox’s “Masked Singer” now has the best three-day delayed viewing lift for any unscripted debut ever.

The bizarre reality competition added 2.9 million total viewers over the 72 hours following its series premiere. The record-breaking claim also holds true among adults 18-49 — the key demographic for primetime advertisers — as well.

Per Nielsen’s Live + 3 Day ratings metric, the opening episode of “The Masked Singer” has now averaged a 3.9 rating/16 share in the demo and 12.3 million total viewers. That new tally is up 2.9 million viewers and 0.9 of a Nielsen ratings point.

“The Masked Singer” took the overall-eyeball growth record off of Jennifer Lopez’s “World of Dance” debut from late May 2017. Fox’s newest hit series beat the network’s “MasterChef Junior” series premiere back in September 2013 in terms of L3 demo increases.

Following its debut, “World of Dance” added 2.1 million total viewers in three-day lifts. The “MasterChef” spinoff’s start rose by 0.8 of a Nielsen ratings point way back when.

Find plenty more context for the “Masked Singer” debut’s “live” ratings here.