Then there was WHDH....RKO...these were financial shenanigans, if I remember
correctly. So not a one lost a license based on "fitness".

The WHDH case stemmed from an improper contact between a representative of an
applicant for a TV license in Boston and an FCC commissioner (chronicled in
Sterling Quinlan's book "The Hundred Million Dollar Lunch"). In that case, the
licensee (the Boston Herald-Traveler newspaper) had been granted the license,
but at renewal time, by which time the ex-parte luncheon had come to light,
lost their "expectation" of renewal and was treated equally with other
applicants for the license. RKO-General lost their licenses (was permitted to
sell them instead of having them yanked by the FCC) for the felony bribery
conviction of their corporate parent, General Tire and Rubber Company (which
certainly qualifies as a "fitness" issue).