Amy Schumer’s star power boosted Saturday Night Live ratings, achieving its highest-rated show since April 7th, when Chad Boseman and Cardi B were aboard.

SNL’s show last night scored a 4.3 rating and a 10 share in “live plus same day” household results from the 56 local markets metered by Nielsen Media Research.

Musical guest Kacey Musgraves also helped, as the show scored a 1.8/9 in adults 18-49 in the 25 markets with local people meters, making it the No. 1 show of the night on the Big 4 networks in meterd market households and in 18-49 in the local people meters, topping all primetime programs on the Big 4 networks. The May 12 “SNL” aired live coast to coast (11:30 p.m. ET, 8:30 p.m. PT) and was replayed at 11:30 in western markets.

The show celebrated Mother’s Day in a cold open acknowledging the show’s political bent. Schumer also anchored some sharp riffs on Hulu’s A Handmaid’s Tale and the things mothers don’t tend to share with children about how they are brought into the world.

Last Week’s Donald Glover-hosted outing averaged a 4.1 Live+same day rating in metered market households and a 1.8 among adults 18-49 in the markets with local people meters. Glover also served as musical guest via his alter-ego, Childish Gambino, and a star-studded cold open gathered Ben Stiller, Martin Short, Jimmy Fallon, Scarlett Johansson, Alec Baldwin and Stormy Daniels.

There should be plenty of guest cameos and goodwill for cast alum Tina Fey when she hosts this Saturday’s SNL season finale. Fey, who has frequently returned to 30 Rock for guest shots since leaving the show in 2006, made a memorable appearance in February in a poke at Philadelphia and Boston football fans on the eve of the Super Bowl.

SNL adds significant viewership via time-shifting, with this season’s first 18 originals growing by +58% in 18-49 and +2.655 million persons, or +39% in total viewers nationally going from “live plus same day” Nielsens to “live plus seven day” figures.

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In L+SD, SNL so far this season is averaging a 1.79 rating in 18-49 nationally and 6.750 million viewers overall, and in L+7, “SNL” is growing to a 2.82 in 18-49 and 9.405 million viewers.

Overall, SNL is in its #2 most-watched season in L+7 in 23 years, since “SNL” averaged 10.213 viewers for originals at this point in 1994-95, trailing over that span only last year’s election-fueled average of 10.951 million viewers.

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