The reporter, from Sky News Arabia*, is smoothly unrolling premature platitudes in Standard Arabic - الجزائريون يهنّئون بعضهم بما تحقّق إلى حدّ الآن يقولون "the Algerians are congratulating each other on what has been achieved up to now, saying..." when a somewhat inebriated-looking man pops into the frame (despite his companion's best efforts to stop him) and starts trying to address the camera. She very reasonably pushes him back off camera, then thinks better of it and decides to turn the intrusion into an impromptu vox pop. He says, making absolutely no effort at all to adjust his dialect towards any sort of externally imposed norm (the only word he takes from Standard Arabic is مُقتَنِعين "satisfied", presumably quoting the reporter):
ماكاش منها، ماناش مُقتَنِعين ڨاعيتيك باه تغيّر نحّاو پيو وعاودوا داروا پيو واحد أوخر، يتنحّاو ڨاع! That's baloney, we're not satisfied at all. To change, they took away a pawn and put on a different pawn again - they should all get taken away!
Knowing that her largely Middle Eastern target audience (not to mention her bosses) won't be able to understand this - especially not the French loanword pion, pawn - she tells him, in colloquial Algerian Arabic, to speak "عرْبيّة" (Arabic). He dismisses this with the classic line:
مانعرفش عربية، هاذي هي الدّارجة تاعنا I don't know Arabic, this is our Darja [colloquial].
The contrast being drawn there between "Arabic" and "Darja", striking as it is, should not be overstated. It was obvious from context that she was using "Arabic" to mean Standard Arabic or at least something a bit closer to it, and he ran with that; but in another context, he or any other speaker would use "عرْبيّة" (Arabic) to refer to Darja, as in the old joke about the Egyptian trying to buy stamps at an Algerian post office. (He asks for Standard Arabic "طابع بريدي" and gets nowhere; when the postmaster eventually figures out what he wants, he shouts "قول تامبر، ماتعرفش العربية؟" - "Say timbre - don't you even know Arabic?")
But it's still worth thinking about why this little video has struck such a chord. Part of the answer, I think, is that it resonates so perfectly with a whole set of stereotypes about Darja vs. Fusha [Standard Arabic]. Fusha is for parroting the official line; Darja is for telling it like it is. Fusha is for fluent, well-planned speech; Darja is off-the-cuff and from the heart. Fusha is for upwardly mobile women; Darja, for working-class men. None of these are truths about the world, obviously - you can be every bit as dishonest or premeditated in Darja as in Fusha (ask s'hab el kachir:), and fluent Fusha is no guarantee you won't find yourself hefting bricks for a living. But they are perceptions that emerge naturally from the regimented, restricted contexts in which Fusha is learned and required. If these stereotypes remind you of Glasgow or the East End, that's no coincidence; they emerge naturally in the context of urban diglossia.