Recording video* is easy; you can do it on most mobile phones these days.
And on that note, the wiki indaba conference was recorded solely on a
mobile phone[1]. Although sound quality wasn't the best, with considerable
thought on getting an appropriate accessory to handle sound, phones are
also an alternative worth looking into.
[1]
https://www.youtube.com/playlist?list=PLTdU_5c77__7y3igaHAauOyAvo2crj2cp
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