What are the Video Controls in RealPlayer and how can I use them?

Video Controls (RealPlayer > Tools > Video Controls) are available for RealPlayer Plus users and RealTimes Premium and Unlimited subscribers, and allow you to adjust a clip's brightness, contrast, color saturation, and sharpness. 

Video Controls adjust video playback only for RealVideo files (RV, RM, RAM). Adjusting Video Controls for MPEG, AVI, MOV, FLV, and WMV files will have no effect.