Original sentence: The 820 AM frequency had carried various formats over the years since signing on in 1972 at 800 kHz -- over the years, they carried Christian, country-western, talk radio, and sports radio, before settling into a Spanish-language hot its format, as "La Preciosa 820"
Edited sentence: The 820 AM frequency had carried various formats over the years since signing on in 1972 at 800 kHz -- over the years, they carried Christian, country-western, talk radio, and sports radio, before settling into a Spanish-language Hot Hits format, as "La Preciosa 820"