After spending an hour learning currencies, 12-year-old Mog demonstrates his fantastic memory skills. SUBSCRIBE: About #Channel4: Channel 4 exists to represent unheard voices, challenge the mainstream and stir the metaphorical pot. This YouTube is here to give you first looks at what’s coming next, to take you deeper into the shows you love and help you discover your next obsession. Like, subscribe and get involved in the conversations in the comments and remember that here we are altogether different. Watch More on #All4
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