Mitsubishi WS-55819 55" Rear Projection Television "1081" Questions

I can't get high def from my old Mitsubishi set even though it says 1080 on it. I am hooked up to direct tv. Is there a special box I need to get 1081? HD TV max is 1080,that it.

...codes for your tv!, just try them, 1381, 3203, 1032, 1213, 1229,1230,1448,1004, 1005, 1018, 1021, 1081, 1381, hope this helps!!!

my panasonic cinemavision 1081 wont turn on the power button just flashes Model number please?   Also count the number of blinks:  3 or 5 or?SD TECH

...1082, 1086, 1136, 1152, 1156, 1166, 1174, 1175, 1180 1000, 1002, 1004, 1005, 1014, 1025, 1078, 1081, 1095, 1096, 1097, 1098, 1099, 1100, 1101, 1111, 1128, 1130, 1132, 1134, 1144, 1149, 1171,