I saw it on BBC channel here. dont worry about what these people say. I just want to clarifiy some points.
1. This took place in Doha which is in Qatar, Qatar is a well known Pseodo-Ikwani supporting Nation whos head Scholar is none other then Yusuf Al-Qaradawi who went from Al-Azhar to spread his deviant beliefs and Ideas in the Gulf.
2. The people debating especially the Man whos from Syria named Muhammad Al-Habash is from the AICP deviant group/organization. They are Habashies. They believe that a Muslim Women can marry a Kaffir and that a Muslim women does not need to wear the Hijab amoung many other things. These people also call Qadiyanies who believe that Mirza Gullam the Indian is a Prophet to be Muslims and they also call Allawis who claim Ali is God to be Muslims as well. They are Ash'ari meaning they deny that Allah is above the Throne, they also deny Asma-wa-seefat. According to this sect called "Habashies" or "AICP" as they are known by their organization is a deviant organization which has been refuted:
http://www.turntoislam.com/forum/showthread.php?p=271288
3. You shouldn't use secular knowledge when you talk about Islam you need a religious persepective in talking about Islam. Not every "Muslim" you meet has the right Aqeedah(belief), Thus like the Prophet said " there will be 73 Sects, all which will be in the Hellfire except 1."
So when you meet people you find their beliefs and what they believe in in the religious persepective not in secular knowledge.