Metalocalypse premiered on Adult Swim in 2006, created by Brendon Small and Tommy Blacha, following fictional death metal band Dethklok as the world's biggest cultural and economic force. Its humour mixes extreme metal worship with deadpan corporate and everyday mundanity. Clips like the grandpa's guitars moment survive online because the insult sums up the show's gatekeeping perfectly, turning age and acoustic or old-fashioned gear into shorthand for un-metal. Fans reuse it in reaction edits and gear discussions long after the series ended.