WDBB (virtual channel 17, UHF digital channel 14) in the Birmingham suburb of Bessemer operates as a full-time satellite of WTTO. It is owned by Cunningham Broadcasting and managed by Sinclair under a time brokerage agreement (TBA); however, Sinclair effectively owns WDBB as the majority of Cunningham's stock is owned by the family of deceased group founder Julian Smith. WDBB—whose transmitter is located east of State Route 69, near Windham Springs—relays WTTO's programming to areas of west-central Alabama that receive marginal to non-existent over-the-air coverage from the latter station's main signal (including its primary city of service, Tuscaloosa). However, there is a decent degree of overlap between the respective signal contours of WTTO and WDBB in western portions of the Birmingham metropolitan area. WDBB is a straight simulcast of WTTO; on-air references to WDBB are limited to FCC-mandated hourly station identifications during station promotions and regular programming, with both stations using WTTO's virtual channel number in on-air branding. Besides the transmitter, WDBB does not maintain any physical presence locally in Tuscaloosa.