On May 15, 2012, Sinclair Broadcast Group and Fox agreed to a five-year extension to the network's affiliation agreement with Sinclair's 19 Fox stations, including WBFF, that will run through 2017. This included an option (that was exercisable from July 1, 2012 to March 31, 2013) to allow Sinclair to purchase WUTB, resulting in the creation of a virtual triopoly with WBFF and WNUV; while giving Fox the option to buy any combination of six CW and MyNetworkTV affiliates (two of which were standalone stations affiliated with the latter service) owned by Sinclair in three of four markets: Raleigh (WLFL and WRDC), Las Vegas (KVCW and KVMY), Cincinnati (WSTR-TV) and Norfolk (WTVZ). Under the agreement and the WUTB purchase option, Sinclair would pay $52.7 million to continue WBFF's affiliation with Fox; however, if Fox exercised the option to buy any of the Sinclair stations that were included in the option, the affiliation payments would decrease to $25 million. On November 29, 2012, Sinclair exercised its option to purchase WUTB through Deerfield Media for $2.7 million. Following the completion of the sale, WUTB began to be operated by Sinclair under a local marketing agreement, as with Deerfield's other stations. In January 2013, Fox announced that it would not exercise its option to buy any of the Sinclair stations included in the earlier purchase option. On May 6, 2013, the FCC granted its approval of WUTB to Deerfield Media. Sinclair officially took over the operations of WUTB eight days later, although the sale was not formally consummated until June 1. With the completion of the WUTB sale, this makes Baltimore the largest market where one company (outside of non-commercial public television station groups) operates a virtual triopoly between full-power stations. WBFF remains the only station in the Baltimore market never to change its primary network affiliate.