On October 21, 2008, WRDX dropped its hot adult contemporary format as "The River" for adult hits as "Tom FM".
On March 1, 2014, WRDX changed their format back to hot adult contemporary, still under the "Tom FM" branding.
On September 3, 2014, WRDX rebranded as "Mix 92.9".[4]
On July 1, 2016, WRDX changed their format to Hot AC, branded as "92.9 Tom FM".[5]
On either November 6 or November 7, 2020, WRDX changed its format from Hot AC to Christmas music still branded as "Tom FM", but changed its slogan to, "Delaware's Christmas Station". The format change happened on November 5, 2021, November 11, 2022, November 10, 2023, and November 8, 2024 and it usually ends on December 26 at midnight but on 2023 it lasted longer until January 2, 2024 at midnight.