NEW YORK -- Robin Williams has early bragging rights over Michael J. Fox in the competition between two sitcom veterans returning to network TV – with an asterisk.


The Nielsen company said Friday that Williams' new CBS comedy, "The Crazy Ones," debuted before 15.6 million people on Thursday night. It competed directly at 9 p.m. Eastern with "The Michael J. Fox" on NBC, which was seen by 7.2 million people.


Williams, who plays an advertising executive working in a firm with his daughter, had a huge advantage. His new sitcom directly followed a new episode of television's most popular comedy, "The Big Bang Theory," which was seen by 19.5 million people in the second of a two-part season premiere.


By contrast, the second half hour of "Parks & Recreation" on NBC, which preceded Fox's new show, had less than 3 million viewers.


CBS succeeded in getting people to sample Williams' new show by scheduling the extra "Big Bang" episode. Moving forward, however, "The Crazy Ones" will be preceded by another new show, "The Millers," on the schedule.


"I really think you have to sit and wait to see what happens," said Brad Adgate, researcher for Horizon Media.


NBC ran two separate episodes of "The Michael J. Fox Show," where the star plays a newscaster coming back to work with Parkinson's disease, which Fox also suffers from. The second, at 9:30 p.m., had a larger audience of 7.4 million people, Nielsen said.


NBC notes that the audience during that hour was double what the network was reaching on average at 9 p.m. Eastern last year with "The Office" and "Parks & Recreation."


Adgate said there was an expectation that the well-known Fox would attract a bigger audience for his return than he actually did.


"Granted, it's a weak lead-in," he said, "but they put him on the show to create appointment viewing and that didn't happen."


Both shows apparently attracted a lot of the stars' old fans. Adgate said the median age of "The Crazy Ones" audience was 55, while it was 54 for "The Michael J. Fox Show."




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  • TV Critics Picks: 2013-2014 TV Season


    <strong>HuffPost TV gathered 19 TV critics to share their picks for the following topics: <a href="http://www.huffingtonpost.com/2013/08/26/best-new-tv-comedy-2013-critics-video_n_3813852.html" target="_blank">Best New Comedy</a>, <a href="http://www.huffingtonpost.com/2013/08/27/best-new-tv-drama-2013-critics-video_n_3820528.html" target="_blank">Best New Drama</a>, <a href="http://www.huffingtonpost.com/2013/08/28/favorite-tv-stars-2013-critics-video_n_3825994.html" target="_blank">Favorite New Stars</a>, <a href="http://www.huffingtonpost.com/2013/08/29/returning-tv-shows-2013-critics-video_n_3833912.html" target="_blank">Returning Shows We Love</a> and <a href="http://www.huffingtonpost.com/2013/08/30/worst-new-tv-show-2013-critics-video_n_3839731.html" target="_blank">Worst New Show</a> of the 2013-2014 TV season. <em>Watch the videos to see who picked what, then click through this gallery to find out when the shows premiere. </em></strong>




  • Worst New Show: "Super Fun Night"


    "Super Fun Night" premieres Wed., Oct. 2 at 9:30 p.m. ET on ABC.




  • Worst New Show: "Dads"


    "Dads" premieres Tues., Sept. 17 at 8 p.m. ET on Fox.




  • Worst New Show: "We Are Men"


    "We Are Men" premieres Mon., Sept. 30 at 8:30 p.m. ET on CBS.




  • Worst New Show: "Sean Saves the World"


    "Sean Saves the World" premieres Thurs., Oct. 3 at 9 p.m. ET on NBC.




  • Worst New Show: "Ironside"


    "Ironside" premieres Wed., Oct. 2 at 10 p.m. ET on NBC.




  • Worst New Show: "Welcome to the Family"


    "Welcome to the Family" premieres Thurs., Oct. 3 at 8:30 p.m. ET on NBC.




  • Worst New Show: "Reign"


    "Reign" premieres Thurs., Oct. 17 at 9 p.m. ET on The CW.




  • Worst New Show: "Back In the Game"


    "Back In the Game" premieres Wed., Sept. 25 at 8:30 p.m. ET on ABC.




  • Worst New Show: "Betrayal"


    "Betrayal" premieres Sun., Sept. 29 at 10 p.m. ET on ABC.




  • Favorite Returning Show: "Game of Thrones"


    "Game of Thrones" Season 4 premieres Spring 2014 on HBO.




  • Favorite Returning Show: "Scandal"


    "Scandal" Season 3 premieres Thurs., Oct. 3 at 10 p.m. ET on ABC.




  • Favorite Returning Show: "Parks and Recreation"


    "Parks and Recreation" one-hour Season 5 premiere airs Thurs., Sept. 26 at 8 p.m. ET on NBC.




  • Favorite Returning Show: "New Girl"


    "New Girl" Season 3 premieres Tues., Sept. 17 at 9 p.m. ET on Fox.




  • Favorite Returning Show: "The Walking Dead"


    "The Walking Dead" Season 4 premieres Sun., Oct. 13 at 9 p.m. ET on AMC.




  • Favorite Returning Show: "Homeland"


    "Homeland" Season 3 premieres Sun., Sept. 29 at 9 p.m. ET on Showtime.




  • Favorite Returning Show: "Boardwalk Empire"


    "Boardwalk Empire" Season 4 premieres Sun., Sept. 8 at 9 p.m. ET on HBO.




  • Favorite Returning Show: "The Mindy Project"


    "The Mindy Project" Season 2 premieres Tues., Sept. 17 at 9:30 p.m. ET on Fox.




  • Favorite Returning Show: "Sons of Anarchy"


    "Sons of Anarchy" Season 6 premieres Tues., Sept. 10 at 10 p.m. ET on FX.




  • Favorite Returning Show: "Orphan Black"


    "Orphan Black" Season 2 premieres April 2014 on BBC America.




  • Favorite Returning Show: "The Good Wife"


    "The Good Wife" Season 5 premieres Sun., Sept. 29 at 9 p.m. ET on CBS.




  • Favorite Returning Show: "Arrow"


    "Arrow" Season 2 premieres Wed., Oct. 9 at 8 p.m. ET on The CW.




  • Favorite Returning Show: "Glee"


    "Glee" Season 5 premieres Thurs., Sept. 26 at 9 p.m. ET on Fox.




  • Favorite Returning Show: "American Horror Story: Coven"


    "American Horror Story: Coven" Season 3 premieres on FX.




  • Favorite Stars: Michael J. Fox & Betsy Brandt


    "The Michael J. Fox Show" premieres Thurs., Sept. 26 at 9 p.m. ET on NBC.




  • Favorite Star: Chelsea Peretti


    "Brooklyn Nine-Nine" premieres Tues., Sept. 17 at 8:30 p.m. ET on Fox.




  • Favorite Star: David Walton


    "About A Boy" premieres midseason 2014 on NBC.




  • Favorite Star: Stephen Merchant


    "Hello Ladies" premieres Sun., Sept. 29 at 10:30 p.m. ET on HBO.




  • Favorite Star: Dermot Mulroney


    "Crisis" premieres midseason 2014 on NBC.




  • Favorite Star: Dylan McDermott


    "Hostages" premieres Mon., Sept. 23 at 10 p.m. ET on CBS.




  • Favorite Star: Tom Mison


    "Sleepy Hollow" premieres Mon., Sept. 16 at 9 p.m. ET on Fox.




  • Favorite Star: Lizzy Caplan


    "Masters of Sex" premieres Sun., Sept. 29 at 10 p.m. ET on Showtime.




  • Favorite Stars: Sarah Michelle Gellar (left) & James Wolk (far right)


    "The Crazy Ones" premieres Thurs., Sept. 26 at 9 p.m. ET on CBS.




  • Favorite Star: Clark Gregg


    "Marvel's Agents of S.H.I.E.L.D." premieres Tues., Sept. 24 at 8 p.m. ET on ABC.




  • Favorite Star: Anna Faris


    "Mom" premieres Mon., Sept. 23 at 9:30 p.m. ET on CBS.




  • Favorite Star: Parker Young


    "Enlisted" premieres Fri., Nov. 8 at 9:30 p.m. on Fox.




  • Best New Drama: "Masters of Sex"


    "Masters of Sex" premieres Sun., Sept. 29 at 10 p.m. ET on Showtime.




  • Best New Drama: "Reign"


    "Reign" premieres Thurs., Oct. 17 at 9 p.m. ET on The CW.




  • Best New Drama: "The Blacklist"


    "The Blacklist" premieres Mon., Sept. 23 at 10 p.m. ET on NBC.




  • Best New Drama: "Hostages"


    "Hostages" premieres Mon., Sept. 23 at 10 p.m. ET on CBS.




  • Best New Drama: "Sleepy Hollow"


    "Sleepy Hollow" premieres Mon., Sept. 16 at 9 p.m. ET on Fox.




  • Best New Drama: "Almost Human"


    "Almost Human" premieres Mon., Nov. 4 at 8 p.m. ET on Fox.




  • Best New Drama: "Marvel's Agents of S.H.I.E.L.D."


    "Marvel's Agents of S.H.I.E.L.D." premieres Tues., Sept. 24 at 8 p.m. ET on ABC.




  • Best New Comedy: "Brooklyn Nine-Nine"


    "Brooklyn Nine-Nine" premieres Tues., Sept. 17 at 8:30 p.m. ET on Fox.




  • Best New Comedy: "Enlisted"


    "Enlisted" premieres Fri., Nov. 8 at 9:30 p.m. on Fox.




  • Best New Comedy: "Hello Ladies"


    "Hello Ladies" premieres Sun., Sept. 29 at 10:30 p.m. ET on HBO.




  • Best New Comedy: "Mom"


    "Mom" premieres Mon., Sept. 23 at 9:30 p.m. ET on CBS.




  • Best New Comedy: "Trophy Wife"


    "Trophy Wife" premieres Tues., Sept. 24 at 9:30 p.m. ET on ABC.




  • Best New Comedy: "The Crazy Ones"


    "The Crazy Ones" premieres Thurs., Sept. 26 at 9 p.m. ET on CBS.




  • Best New Comedy: "About A Boy"


    "About A Boy" premieres midseason 2014 on NBC.