Based on the provided text and web search results,here’s an updated response regarding the availability of “A Theme a Day” installments:
The podcast “Un tema Al Día” (A Theme a Day),produced by elDiario.es, is available on various podcast platforms. While the text provided doesn’t explicitly state all installments are archived on the elDiario.es/aldia webpage, it does link to the podcast’s Omny.fm playlist: https://omny.fm/shows/un-tema-al-dia/playlists/podcast/embed?style=cover.
This Omny.fm link appears to be the primary location for accessing the podcast episodes. elDiario.es also offers a newsletter, “Al día,” related to the podcast, and encourages subscriptions: https://www.eldiario.es/blog/al-dia/suscribir-boletin-al-dia/.
Therefore, while not directly hosted as a complete archive on elDiario.es/aldia, the podcast episodes are readily accessible via Omny.fm.