NBC has renewed its popular alternative series freshman hit “America’s Got Talent: The Champions” for a second season, the company announced Saturday.

“World of Dance” has also been renewed for a fourth season.

“America’s Got Talent: The Champions” averaged a 2.2 rating in adults 18-49 and 12.4 million viewers overall in “live plus seven day” Nielsens, making it the season’s #1 most-watched alternative series and the most-watched new alternative series on any broadcast network since the debut of “Little Big Shots” three years ago.

For the 2018-19 season, “World of Dance” has averaged a 1.2 rating in adults 18-49 and 4.8 million viewers overall in “live plus seven day” Nielsens, for a gain of 33% versus NBC’s year-ago 18-49 average in the Sunday 8-10 p.m. timeslot. “World of Dance” also delivers a strong upscale audience, with a 115 index among adults 18-49 living in homes with $100K+ incomes and a 118 among adults 18-49 with four or more years of college (100 represents an average concentration of those viewers).

“World of Dance” is also a top digital performer, generating 22% of its “live plus 35 day plus digital” 18-49 rating from nonlinear sources, the #1 biggest percentage among NBC alternative series. “World of Dance” gives dancers the platform to showcase their talents and compete for a life-altering grand prize of $1 million.

Jennifer Lopez, Elaine Goldsmith-Thomas & Benny Medina executive produce “World of Dance” for Nuyorican Productions.