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For months, Mateo had been obsessed with the "Carlost" era of the show. These were episodes filmed in 1979 during the chaotic period when Carlos Villagrán (Quico) left the series, and before the cast moved fully to the Acapulco format. These episodes were rarely aired on television anymore. Televisa kept them locked away, or perhaps the original tapes had simply turned to dust in a vault somewhere. But rumors on obscure forums spoke of a digitized collection—eight specific episodes, a "lost arc"—uploaded by an anonymous user named 'ProfesorJirafales66' to the Internet Archive just before the site underwent a massive server purge. el chavo del ocho 8 capitulos internet archive