Al Jazeera America, a new cable and satellite channel, will go on the air on Tuesday.&nbsp; In a news conference last week, the channel's acting chief executive said they will be airing &quot;fact-based, unbiased and in-depth news&quot;.&nbsp; What can we expect from this latest news channel?&nbsp; Read more:&nbsp; <a href="http://www.nytimes.com/2013/08/19/business/media/al-jazeera-america-promises-a-more-sober-look-at-the-news.html?hp&amp;_r=0">www.nytimes.com/2013/08/19/business/media/al-jazeera-america-promises-a-more-sober-look-at-the-news.html</a><br />