Because it sure ain't mine:
Over the five-day period from September 5 through September 9, Fox News spent far more time airing unfiltered clips -- that is, clips of the candidates talking at campaign events uninterrupted by journalists' voice-overs -- of the Republican presidential ticket and its surrogates than of the Democratic presidential ticket and its surrogates, also airing a far greater number of Republican clips. Moreover, all three cable networks devoted more airtime (significantly more in the cases of Fox News and MSNBC) to, and broadcast a significantly greater number of clips of, the Republican candidates and their surrogates campaigning than of the Democratic candidates and their surrogates on both Fridays after the two national conventions.
Of the total time Fox News devoted to unfiltered campaign clips between September 5 and September 9, 78 percent was of the Republican candidates and their surrogates, with 22 percent devoted to the Democrats. Moreover, of the total number of these clips aired on Fox News, 81 percent were of Republicans. [. . .]
On Friday, September 5, all three cable networks -- MSNBC, CNN, and Fox News -- devoted more time to airing unfiltered clips of the McCain-Palin campaign than of the Obama-Biden campaign, with Fox News and MSNBC skewing significantly in favor of the Republicans. Fox News devoted 81 percent of its unfiltered clip time to Republicans and MSNBC 64 percent. CNN devoted 53 percent of the total clip time length to the Republicans.
Of the total number of clips run on the three cable channels on September 5, 93 percent on Fox News, 77 percent on CNN, and 68 percent on MSNBC were of Republicans.