TV Ratings: 'Young Sheldon' marks biggest comedy premiere in 4 years

CBS will have more than a month to hold Young Sheldon over its competitors' heads. Monday's sampling of the new comedy, a month out from its official Nov. 2 premiere, likely set this season's high bar for fall premieres.

After an episode of it's parent series, The Bang Theory spinoff averaged a daunting 3.7 rating among adults 18-49 and 16.6 million viewers. That's incredible retention for the new series. Its lead-in, returning for its 11th season, averaged a 3.9 rating in the key demo and 17 million viewers.

The Young Sheldon currently ranks as the most-watched comedy premiere since 2 Broke Girls (2011) and the highest-rated since The Crazy Ones (2013). It also boasts the best retention of any of the many, many comedies to launch out of The Big Bang Theory. Plenty of hopes have been pinned to project. Largely considered the fall season's surest shot at new hit, it will now have the entire month of October to grow its multiplatform reach and, if CBS is lucky, court the long-term affections of its parent series' numbered fans.

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'Young Sheldon' on CBS
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'Young Sheldon' on CBS
LOS ANGELES - MAY 17: YOUNG SHELDON is a new half-hour, single-camera comedy created by Chuck Lorre and Steven Molaro, that introduces 'The Big Bang Theory's' Sheldon Cooper (Iain Armitage), a 9-year-old genius living with his family in East Texas and going to high school. YOUNG SHELDON will have a special Monday launch behind the season premiere of THE BIG BANG THEORY on Sept. 25 (8:30-9:00 PM, ET/PT). On Nov. 2, YOUNG SHELDON will move to its regular time period, Thursdays (8:30-9:00 PM, ET/PT) on the CBS Television Network. (Photo by Robert Voets/CBS via Getty Images)
LOS ANGELES - MAY 17: YOUNG SHELDON is a new half-hour, single-camera comedy created by Chuck Lorre and Steven Molaro, that introduces 'The Big Bang Theory's' Sheldon Cooper (Iain Armitage), a 9-year-old genius living with his mother (Zoe Perry), father and two siblings in East Texas and going to high school. YOUNG SHELDON will have a special Monday launch behind the season premiere of THE BIG BANG THEORY on Sept. 25 (8:30-9:00 PM, ET/PT). On Nov. 2, YOUNG SHELDON will move to its regular time period, Thursdays (8:30-9:00 PM, ET/PT) on the CBS Television Network. (Photo by Robert Voets/CBS via Getty Images)
LOS ANGELES - MAY 17: YOUNG SHELDON is a new half-hour, single-camera comedy created by Chuck Lorre and Steven Molaro, that introduces 'The Big Bang Theory's' Sheldon Cooper (Iain Armitage), a 9-year-old genius living with his family in East Texas and going to high school. YOUNG SHELDON will have a special Monday launch behind the season premiere of THE BIG BANG THEORY on Sept. 25 (8:30-9:00 PM, ET/PT). On Nov. 2, YOUNG SHELDON will move to its regular time period, Thursdays (8:30-9:00 PM, ET/PT) on the CBS Television Network. (Photo by Robert Voets/CBS via Getty Images)
LOS ANGELES - JULY 26: 'Pilot' -- Pictured (L-R): Montana Jordan as Georgie, Iain Armitage as Young Sheldon, Lance Barber as George, Sr, Zoe Perry as Mary and Raegan Revord as Missy. 9-year old Sheldon Cooper is a once-in-a-generation mind capable of advanced mathematics and science but learns that isn\'t always helpful growing up in East Texas, a land where church and football are king, on the special series debut of the new comedy YOUNG SHELDON, Monday, Sept. 25 (8:30-9:00 PM, ET/PT) on the CBS Television Network. YOUNG SHELDON moves to Thursdays (8:30-9:00 PM, ET/PT) as of Nov. 2. (Photo by Robert Voets/CBS via Getty Images)
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Sheldon's breakout night certainly dampened other showings. The Voice returned to NBC for its 13th cycle with a premiere low. Though it still averaged an enviable 2.6 rating among adults 18-49 for its two-hour stretch, it lost just over 20 percent of its year-ago premiere and offered a weaker live lead-in for new drama The Brave. It averaged a 1.4 rating in the key demo and 6.2 million viewers.

Another 10 o'clock premiere fared much better, though just how much better won't be clear until later on Tuesday. ABC saw preemptions of ESPN's surging Monday Night Football cloud early scores for Dancing With the Stars and new drama The Good Doctor — but, for now, The Good Doctor looks like a lock for a time period win, potentially topping the 2.0 rating mark. That has become harder and harder for broadcast networks to do at 10 o'clock, evidently even with a lead-in from The Voice.

Elsewhere on CBS, Kevin Can Wait benefited a great deal from its Sheldon lead-in. It surged in its return to a 2.3 rating among adults 18-49, followed by a solid sampling for newcomer Me, Myself & I (1.7 adults) and a middling return for Scorpion (1.0 adults).

Fox was the only member of the Big Four still spending its summer programming stock. The finale of So You Think You Can Dance came in with just a 0.6 rating among adults 18-49.

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LOS ANGELES - APRIL 19: 'The Line Substitution Solution' -- Pictured: Trevor (Blake Anderson), Sheldon Cooper (Jim Parsons), Leonard Hofstadter (Johnny Galecki), Howard Wolowitz (Simon Helberg) and Rajesh Koothrappali (Kunal Nayyar). Sheldon hires Stuart to spend the day with Amy when he'd rather go to a movie screening. Also, Leonard's mother, Beverly (Christine Baranski), comes to town and Penny struggles to make a connection with her, on THE BIG BANG THEORY, Thursday, May 5 (8:00-8:31, ET/PT) on the CBS Television Network. (Photo by Michael Yarish/CBS via Getty Images)
LOS ANGELES - APRIL 19: 'The Line Substitution Solution' -- Pictured: Sheldon Cooper (Jim Parsons), Leonard Hofstadter (Johnny Galecki), Stuart (Kevin Sussman) and Howard Wolowitz (Simon Helberg). Sheldon hires Stuart to spend the day with Amy when he'd rather go to a movie screening. Also, Leonard's mother, Beverly (Christine Baranski), comes to town and Penny struggles to make a connection with her, on THE BIG BANG THEORY, Thursday, May 5 (8:00-8:31, ET/PT) on the CBS Television Network. (Photo by Michael Yarish/CBS via Getty Images)
LOS ANGELES - APRIL 19: 'The Line Substitution Solution' -- Pictured: Sheldon Cooper (Jim Parsons), Howard Wolowitz (Simon Helberg), Rajesh Koothrappali (Kunal Nayyar) and Leonard Hofstadter (Johnny Galecki). Sheldon hires Stuart to spend the day with Amy when he'd rather go to a movie screening. Also, Leonard's mother, Beverly (Christine Baranski), comes to town and Penny struggles to make a connection with her, on THE BIG BANG THEORY, Thursday, May 5 (8:00-8:31, ET/PT) on the CBS Television Network. (Photo by Michael Yarish/CBS via Getty Images)
HOLLYWOOD, CALIFORNIA - MARCH 16: (L-R) Moderator Alie Ward, executive producers Chuck Lorre, Steven Molaro, Bill Prady, actors Mayim Bialik, Jim Parsons, Kaley Cuoco, Johnny Galecki, Simon Helberg, and Kunal Nayyar attend The Paley Center For Media's 33rd Annual PALEYFEST Los Angeles ÃThe Big Bang Theory' at Dolby Theatre on March 16, 2016 in Hollywood, California. (Photo by Matt Winkelmeyer/Getty Images)
BEVERLY HILLS, CA - MARCH 09: (L-R) Actors Jim Parsons, Melissa Rauch, Kunal Nayyar, Kaley Cuoco, Simon Helberg, Mayim Bialik and Johnny Galecki perform onstage during the 24th and final 'A Night at Sardi's' to benefit the Alzheimer's Association at The Beverly Hilton Hotel on March 9, 2016 in Beverly Hills, California. (Photo by Jesse Grant/Getty Images)
MUST SEE TV: AN ALL-STAR TRIBUTE TO JAMES BURROWS -- Pictured: (l-r) Kaley Cuoco, Simon Helberg, Johnny Galecki, Jim Parsons -- (Photo by: Trae Patton/NBC/NBCU Photo Bank via Getty Images)
LOS ANGELES - FEBRUARY 2: 'The Positive Negative Reaction' -- Bernadette is concerned when Wolowitz freaks out over her pregnancy announcement, and Wolowitz is convinced he must make more money to provide for the baby, on THE BIG BANG THEORY, Thursday, Feb. 18 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Pictured left to right: Kunal Nayyar, Simon Helberg, Johnny Galecki and Jim Parsons (Photo by Sonja Flemming/CBS via Getty Images)
LOS ANGELES - JANUARY 19: 'The Valentino Submergence' -- Sheldon and Amy host a live Valentine's Day episode of Fun with Flags, Leonard and Penny grapple with getting older, Howard and Bernadette find a surprise in their hot tub and Raj is torn between Emily and the cute girl he met at the Comic Bookstore, on THE BIG BANG THEORY, Thursday, Feb. 11 (8:00-8:31 PM, ET/PT), on the CBS Television Network. Pictured left to right: Johnny Galecki, Simon Helberg, Jim Parsons and Kunal Nayyar (Photo by Monty Brinton/CBS via Getty Images)
LOS ANGELES - FEBRUARY 8: 'The Celebration Experimentation' -- After more than nine years together, the gang finally celebrates Sheldon's birthday, surprising him with a special guest, on the 200th episode of THE BIG BANG THEORY, Thursday, Feb. 25 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Pictured left to right: Jim Parsons, Kunal Nayyar, Sara Gilbert, Kevin Sussman, Adam West, Simon Helberg, Melissa Rauch, John Ross Bowie, Wil Wheaton, Johnny Galecki and Kaley Cuoco (Photo by Monty Brinton/CBS via Getty Images)
LOS ANGELES - FEBRUARY 2: 'The Positive Negative Reaction' -- Bernadette is concerned when Wolowitz freaks out over her pregnancy announcement, and Wolowitz is convinced he must make more money to provide for the baby, on THE BIG BANG THEORY, Thursday, Feb. 18 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Pictured left to right: Simon Helberg, Kunal Nayyar, Jim Parsons and Johnny Galecki (Photo by Sonja Flemming/CBS via Getty Images)
LOS ANGELES - AUGUST 30: 'The Pulled Groin Extrapolation' -- Sheldon and Penny wonder how they'll get along when Leonard goes to a wedding as Amy's date. Meanwhile, Howard (Simon Helberg, left) and Bernadette (Melissa Rauch, right) spend the weekend with Mrs. Wolowitz, on THE BIG BANG THEORY, Thursday, Sept. 29 (8:00-8:31 PM, ET/PT) on the CBS Television Network. (Photo by Richard Cartwright/CBS via Getty Images)
LOS ANGELES - SEPTEMBER 23: 'The Workplace Proximity' -- Howard (Simon Helberg, left) finds himself sleeping on Raj'™s couch after a fight with Bernadette, on THE BIG BANG THEORY, Thursday, Oct. 17 (8:00 -“ 8:31 PM, ET/PT) on the CBS Television Network. Also pictured: Johnny Galecki (right) (Photo by Monty Brinton/CBS via Getty Images)
LOS ANGELES - APRIL 15: 'The Gorilla Dissolution' -- Howard (Simon Helberg, left) and Bernadette (Melissa Rauch, right) struggle to care for Mrs. Wolowitz, on THE BIG BANG THEORY, Thursday, May 8 (8:00-8:31 PM, ET/PT) on the CBS Television Network. (Photo by Sonja Flemming/CBS via Getty Images)
LOS ANGELES, CA - SEPTEMBER 18: Kaley Cuoco is seen at 'Jimmy Kimmel Live' on September 18, 2014 in Los Angeles, California. (Photo by RB/Bauer-Griffin/GC Images)
LOS ANGELES, CA - SEPTEMBER 20: Kaley Cuoco is seen in Los Angeles on September 20, 2014 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
LOS ANGELES, CA - SEPTEMBER 20: Kaley Cuoco is seen in Los Angeles on September 20, 2014 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
LOS ANGELES, CA - AUGUST 25: Actress Kaley Cuoco (R) and husband Ryan Sweeting (L) attend HBO's 2014 Emmy after party at The Plaza at the Pacific Design Center on August 25, 2014 in Los Angeles, California. (Photo by Barry King/FilmMagic)
GOOD MORNING AMERICA - Rihanna, Steve Martin and Jim Parsons are all guests on 'Good Morning America,' 3/13/15, airing on the ABC Television Network. (Photo by Lou Rocco/ABC via Getty Images)
LOS ANGELES, CA - AUGUST 25: Actress Kaley Cuoco arrives to the 66th Annual Primetime Emmy Awards at Nokia Theatre L.A. Live on August 25, 2014 in Los Angeles, California. (Photo by C Flanigan/Getty Images)
BURBANK - JULY 23: Gallery Promo Coverage of CBS' THE BIG BANG THEORY, scheduled to air on the CBS Television Network. Pictured: Simon Helberg as Howard Wolowitz. (Photo by Monty Brinton/CBS via Getty Images)
BEVERLY HILLS, CA - DECEMBER 18: Actress Kaley Cuoco-Sweeting arrives at The PEOPLE Magazine Awards at The Beverly Hilton Hotel on December 18, 2014 in Beverly Hills, California. (Photo by Jon Kopaloff/FilmMagic)
NEW YORK - MAY 18: CBS announces their new fall schedule. (Jeffrey R. Staab/CBS via Getty Images) *** CBS presented its 2016-17 prime time schedule today (May 18) at Carnegie Hall, where many of the Networks new and returning series stars were in attendance. Pictured L-R: Melissa Rauch, Mayim Bialik, Simon Helberg, Kaley Cuoco, Jim Parsons, and Johnny Galecki from THE BIG BANG THEORY *** Melissa Rauch;Mayim Bialik;Simon Helberg;Kaley Cuoco;Jim Parsons;Johnny Galecki
LOS ANGELES - SEPTEMBER 9: 'The Hook-Up Reverberation' -- Raj's honesty about his past comes back to haunt him after his girlfriend, Emily, is cold to Penny. Also, the guys consider becoming part-owners in Stuart's comic book store, on THE BIG BANG THEORY, Monday, Oct. 6 (8:00-8:31, ET/PT), on the CBS Television Network. Pictured left to right: Laura Spencer, Simon Helberg, Melissa Rauch, Mayim Bialik, Jim Parsons, Johnny Galecki and Kaley Cuoco-Sweeting (Photo by Sonja Flemming/CBS via Getty Images)
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