El Tesoro del Saber was a Mexican educational television programme aimed at children, built around lessons presented in an entertaining, accessible way. Its opening sequence became the most remembered part for many viewers, because the short sung intro signalled the start of the show so clearly. Clips of the theme now circulate online in nostalgia posts and meme edits, where Spanish speaking audiences use it to mark anything presented as a lesson, a discovery or a piece of wisdom worth sharing.