WGCL-TV has multiplexed additional digital subchannels on its over-the-air transmitter during the NCAA Division I Men's Basketball Tournament period during select days and time periods in March. This is done in order to broadcast several basketball games in progress simultaneously carried by CBS Sports. The subchannels, which can number as many as three, have a typical video resolution of 480i at aspect ratio. In March 2009, only one subchannel (46.2, labeled WGCLDT2) was used. Since then, no subchannels have been needed because the additional games in progress are now broadcast on TBS and TNT because of a deal between CBS, the NCAA and Turner Broadcasting.