Jon Stewart ripped TV networks' coverage of the 2012 London Olympics on Thursday's "Daily Show" for using somewhat ridiculous and ineffective spoiler alerts.

NBC, the official U.S. broadcaster of the London Games, has been the subject of harsh criticism for deciding to delay airing the Olympics' biggest events till prime time hours. Viewers have grown frustrated with NBC's coverage as it is incredibly difficult to avoid spoiler alerts throughout the day. The network defended its decision to use tape delay, citing the Olympics' record ratings and NBC's internal research.

Cable news networks, however, have been reporting Olympics results as they happen, and warning viewers to turn away to avoid hearing the results.

Stewart mocked "CNN Newsroom" host Brooke Baldwin, who warned viewers to mute their TVs if they did not want to hear any Olympics spoilers. "People watch CNN not on mute?" Stewart wondered.

Stewart also played a clip of Fox News' "America's Newsroom," in which the hosts told viewers to mute their TVs if they didn't want to hear the results of men's 400-meter individual medley on Saturday, only to place a chyron announcing the winner across the bottom of the screen.

In addition to cable news networks, NBC has also ruined major Olympic moments. Moments before airing Monday's highly anticipated race with 17-year-old swimming sensation, Missy Franklin, the network aired a promo for Tuesday morning's "Today" show with the results. "When you're 17 years old and win your first gold medal, there's nobody you'd rather share it with," the promo announcer says while images of Franklin with her gold medal hugging her family filled the screen.

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  • Opening Ceremony

    The five Olympic rings rise above a scene depicting the era of the Industrial Revolution during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    An artist performs during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    An artist performs as huge chimneys emerge from the ground to symbolise the industrial revolution during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London.

  • Opening Ceremony

    Performers depict a view of the English countryside during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    A general view of the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Artists perform during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    Artists perform during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    A drummer performs during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012.

  • Opening Ceremony

    Artistic Director of the Opening Ceremony Danny Boyle speaks whilst standing next to the Olympic Bell during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Chimneys erupt from the centre of the field during The Age of Industry scene in the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012.

  • Opening Ceremony

    An artist performs as a chimney emerges from the ground to symbolise the industrial revolution during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    An actor climbs a giant chimney during The Age of Industry scene in the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012.

  • Opening Ceremony

    A performer climbs along a chimney emerging from the ground to symbolise the industrial revolution during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London.

  • Opening Ceremony

    Artists perform during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    Huge chimneys emerge from the ground to symbolise the industrial revolution during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London.

  • Opening Ceremony

    Drummers drum during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Performers depict a view from the change of the English countryside to the Industrial Revolution during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Artists perform around chimneys during The Age of Industry scene in the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    Freshly 'forged' Olympic Rings fly above the chimneys during The Age of Industry scene in the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012.

  • Opening Ceremony

    The Olympic rings are assembled above the stadium in a scene depicting the Industrial Revolution during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Rings representing both the Olympics and the Industrial Revolution are lit during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    A general view of the the set depicting the English countryside during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    The Olympic rings are assembled above the stadium in a scene depicting the Industrial Revolution during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Actors perform in the scene The Age of Industry during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012.

  • Opening Ceremony

    Rings representing both the Olympics and the Industrial Revolution are lit during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Artists perform as the Olympic rings are pictured above the stadium during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    Rings representing both the Olympics and the Industrial Revolution are lit during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    An actor dressed to resemble Britain's Queen Elizabeth II parachutes into the stadium during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012.

  • Opening Ceremony

    Actors perform during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012.

  • Opening Ceremony

    Actors perform during the opening ceremony of the London 2012 Olympic Games at the Olympic Stadium in London on July 27, 2012.

  • Opening Ceremony

    The Olympic rings float above artists performing during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    Aerial view shows the Olympic rings being raised in the Olympic Stadium during the opening ceremony of the London 2012 Olympic Games on July 27, 2012.

  • Opening Ceremony

    Performers depict the industrial revolution during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Performers depict the industrial revolution during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    General view of the Olympic Stadium as the Olympic rings float above artists during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 in London.

  • Opening Ceremony

    Inflatable yellow submarines float above artists performing during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London.

  • Opening Ceremony

    A young performer holds a balloon during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Performers depict a view of the English countryside during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Drummers perform during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Actors and dancers play Great Ormond Street Children's Hospital staff and patients during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic stadium in London.

  • Opening Ceremony

    Dancers playing Great Ormond Street Children's Hospital staff perform during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    Dancers perform in the Gosh and NHS scene during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    Dancers perform in the Gosh and NHS scene during the opening ceremony of the London 2012 Olympic Games on July 27, 2012 at the Olympic Stadium in London.

  • Opening Ceremony

    A general view of the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Performers depict a view of the Industrial Revolution during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    A general view of the interior of the stadium during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    Performers depict a view of the Industrial Revolution during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    A performer in the role of Daniel Craig as James Bond parachutes out of a helicopter with a Union Jack parachute during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    The Union Flag is presented during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    A general view is seen while performers depict a view from the change of the English countryside to the Industrial Revolution during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.

  • Opening Ceremony

    A general view is seen during the Opening Ceremony of the London 2012 Olympic Games at the Olympic Stadium on July 27, 2012 in London, England.