Sinclair tried to buy Glencairn outright in 2001, but was unable to buy WNUV due to the FCC's rules on duopolies. Despite its relatively large size, the Baltimore market has only seven full-power stations (or six, if two stations licensed in the market that are operated by Maryland Public Television are treated as one)—two fewer than what FCC regulations allow to legally permit a duopoly (the FCC requires a market to have eight unique station owners once a duopoly is formed, effectively limiting duopolies to markets with at least nine full-power stations). Glencairn changed its name to Cunningham Broadcasting and retained ownership of WNUV. However, nearly all of Cunningham's stock is held in trusts owned by the Smiths. This "de facto" duopoly continues to this day, while the close relationship between Sinclair and Glencairn/Cunningham has led to claims that Cunningham is merely a corporate shell that Sinclair uses in order to evade FCC ownership restrictions.