US TV
Rex Features
The PBS children's series, which has amassed 122 Emmy Awards, has aired for a total of more than 21 million minutes since its debut on November 10, 1969, E! reports.
US First Lady Michelle Obama was on hand for the milestone episode, appearing in a segment that encouraged kids to eat healthier and showed residents of the fictional street how to grow their own vegetables.
Obama was asked by Big Bird if she was "part bird" after he noted on the show that "you and I are both really tall".
Actress Cameron Diaz also stopped by to teach Muppet Grover the importance of trees "cleaning the air that we breathe" after he mistakenly thought she was there to help him learn about mailboxes.
A new retrospective DVD Sesame Street: 40 Years of Sunny Days was released in conjunction with the anniversary.
Tube Talk
Ultimate 'Simpsons' countdown (20-16)We reveal the results of our Ultimate Simpsons episode countdown.
2012-13 Season
NBC orders 'Hannibal' seriesBryan Fuller drama featuring characters from Red Dragon gets 13-episode order.
US TV Interviews
'Unforgettable' Poppy Montgomery interviewPoppy Montgomery chats to Digital Spy about her role in Unforgettable.
US TV Ratings
Grammy Awards most-watched since 1984The 54th Grammy Awards is seen by over 40 million viewers for the CBS network.
