[2] Sunday syndicated programming on The Gamut includes Music and the Spoken Word (with WFED),[3] Anything Anything with Rich Russo and Little Steven's Underground Garage.

[4] WWFD's experiments with digital-only operation led to the FCC authorizing it on a voluntary basis for AM band stations nationwide in 2020.

From 1975 through 1988, WZYQ was contemporary hit radio (CHR) station "14ZYQ", transitioning to "Z104" during that era, with a brand emphasizing its simulcast on WZYQ-FM (103.9 FM).

All three stations were sold to Bonneville International the following year, who revived the "Z104" brand on the FM pair and built a successful CHR outlet focused on the Washington market.

[12] The Gamut began as an eclectic hobby Internet radio station run by WTOP-FM engineer Dave Kolesar.

WTOP management took an interest in the project, and after retooling the music and coming up with the name The Gamut, it began broadcasting on the HD3 subchannel of WTOP-FM on December 5, 2011.

The translator was moved under the FCC's AM revitalization rules and was required to rebroadcast the 820 AM signal for at least four years, including when it joined WFED for sports coverage.

[4] Hubbard and Xperi, the current developer of HD Radio, have used WWFD to test new features and operating modes; it notably experimented with a multiplexed signal, the first of its kind for an AM station in North America, in December 2019.

[5] After several yearly extensions of its digital authorization to continue testing with Xperi, Hubbard filed to take WWFD permanently all-digital effective August 10, 2023.