were there any special programmes broadcasted by it?
Yes. Golden Globe Awards and the Emmy Awards
NBC
NBC holds the broadcast rights to several annual specials and award show telecasts including the Golden Globe Awards and the Emmy Awards (which is rotated across all four major networks each year). 
what is goodbye mr. fish? Second episode of the of the American sitcom "The Cosby Show" what is the episode about? It focuses on the death of Rudy's pet goldfish, which was difficult to explain to her and difficult for her to deal with can you can any other episodes of the show? UNANSWERABLE what did the pilot show deal with? It uses the same title sequence as the rest of the first season but the Huxtables have only four children in which channel was it aired? NBC
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NBC [SEP] Specials
NBC holds the broadcast rights to several annual specials and award show telecasts including the Golden Globe Awards and the Emmy Awards (which is rotated across all four major networks each year). Since 1953, NBC has served as the official U.S. broadcaster of the Macy's Thanksgiving Day Parade. CBS also carries unauthorized coverage of the Macy's parade as part of "The Thanksgiving Day Parade on CBS"; However, as NBC holds rights to the parade, it has exclusivity over the broadcast of Broadway and music performances appearing in the parade (CBS airs live performances separate from those seen in the parade as a result), and Macy's chose to reroute the parade in 2012 out of the view of CBS' cameras, although it continues to cover the parade.