If you still want to check YouTube, search in Spanish exactly as you did, but filter by "Playlist" or sort by "Long" (>20 minutes) to find any user-uploaded episodes. Keep in mind these may be unofficial, poor quality, or taken down for copyright.
Para los espectadores en Estados Unidos, Telemundo ofrece capítulos completos a través de su sitio web y aplicación oficial para diversos dispositivos como Roku, Fire TV y Apple TV. youtube la ley del coraz%C3%B3n cap%C3%ADtulos completos
You can find full episodes (including the original series and sequels) on streaming platforms like: If you still want to check YouTube, search