In conclusion, the answer should explain that "El pájaro loco" is likely still under copyright, so downloading from unauthorized sources is illegal. Advise the user to seek legal avenues like streaming platforms or official distributors. Also, mention the existence of the show's seasons and warn against piracy. Make sure to provide accurate information without endorsing illegal activities.

Another angle: sometimes older TV shows enter public domain after a certain period. For example, in the U.S., works from before 1923 are in the public domain. But Spain might have different rules. The Madrid Protocol and Berne Convention might affect this. The Berne Convention typically offers protection for the life of the author plus 50-70 years, depending on the country. If the show was created after 1977, it might still be protected.

Looking up when "El pájaro loco" was first aired could help. The user mentioned season 6. If the show first aired in the 1990s or 2000s, it's likely still under copyright. I should check the show's official website or sources like IMDb for the original air dates. Let me see... IMDb lists "El pájaro loco" as an animated series that ran from 2007 to 2012. If it was created in the 2000s, that's within the recent past, so the copyright is probably still active.