Original sentence: Since the addition of KAMP FM, many changes have been made at the station including increased advertisement and work on their playlist
Edited sentence: After almost 2 decades of being the only CHR/Top 40 outlet in Los Angeles, CBS Radio decided to flip FM Talk 97.1 to 97.1 AMP Radio, a Top 40 formatted station similar to KIIS.Since the addition of AMP Radio, many changes have been made at the station including increased street presence through advertising on city bus stops and billboards and consistent work on their playlist