Use these settings by all means but for your TV in your viewing environment, if calibrated by a professional, your settings would be different. There are no one set of settings for any one modle of TV as it's all down to the room the TV is viewed in. Even 2 TV the same model will have slightly different optimal setting in the same room.
If you want the most from you picture have a look here. Sorry it's a lot of reading. http://www.whathifi.com/forum/tvs-and-projectors/my-panasonic-50vt65-thx-calibrated