You did not answer my questions and I did not say they were "totally unreliable". The problem is in finding the truth in the propaganda.
There have been articles posted here that are translations of al Jazeera. Maybe you could go back and find those and read what they say. That way you will be able to have an informed opinion that doesn't involve learning Arabic.
It seems to me that Al-Jazeera would, at best, appeal to a niche market. I can't see them becoming, for example, the next CNN. For that matter, the cable news channels have a very small market share compared to major networks and other cable channels.
However, if they can't attract at least some viewers, or if they generate too much controversy, they won't last long in an American market because no one will advertise on their station. If they are seen as unreliable or untruthful, they won't last long I think.