NBC has announced it has given second-season renewals to The Marriage Ref and Who Do You Think You Are? -- two new reality series that premiered earlier this year.

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Each The Marriage Ref episode follows spouses who are having a marital dispute as they present their case to a panel of celebrities and comedians. The panel then try to convince comedian Tom Papa which spouse is correct before he issues a final verdict. 

The Jerry Seinfeld-created reality series premiered in February and has averaged 7.2 million total viewers and a 3.0/8.0 rating/share in the Adults 18-49 demographic while airing in its Thursdays at 10PM ET/PT timeslot.

Who Do You Think You Are? traces the family tree of a different celebrity every episode, taking viewers on a genealogical journey into the star's past via a narrative that links their ancestry with what historical events were occurring at that time.

The series, an adaptation of a British series, premiered last month and has averaged 6.8 million total viewers and a 1.6/6.0 rating/share in the Adults 18-49 demographic while airing in its Fridays at 8PM ET/PT timeslot.

In addition to The Marriage Ref and Who Do You Think You Are?, NBC also renewed Minute to Win It -- a new game show that features contestants trying to complete 10 simple yet increasingly-difficult challenges for the chance to win $1 million.

"All of these new series have demonstrated increasing popularity and generated far-reaching interest among viewers," said NBC programming executive Paul Telegdy. 

"Equally important, each has a compelling and innovative format, and a second season will allow these shows to grow creatively and attract an even wider audience."