getBestResolution

public String getBestResolution() {
         String[] resolutions = null;
         String resolution = "720p";
         String rawList = readSupportList(HDMI_SUPPORT_LIST);
         if (rawList != null) {
             resolutions = (rawList.substring(0, rawList.length()-1)).split("|");
         } 
         if (resolutions != null) {
             for (int i = 0; i < resolutions.size(); i++) {
                  if (resolutions[i].contains("*")) {
                      // best mode
                      resolution = resolutions[i].substring(0, resolutions[i].length()-1);
             }
         }

         if (resolution.contains("50hz")) {
             return resolution + "50hz";
         } 

         return resolution;
     }