It should change by itself if you are getting a 1080 program. UNLESS you are using a Satellite decoder box. I had to go to "settings" menu in the decorder box and uncheck 480i then check 480p, 720p and the 1080 box. After that, the Info button activated the screen to display the 1080 format.
1080p is the highest standard of HDTV.
As long as the screen is capable of and set for 1920X1080 (thats the size of 1080p HD) or higher
The difference between 720p and 1080p is in how many pixels are displayed across the screen horizontally and vertically. 1080p would have more pixels and thus the image on the screen would be clearer.
Blurry
Yes, the Mitsubishi has a sleep timer and as a added bonus it has a wake timer also.
Currently, 1080p is the highest commonly available and useful television resolution. New formats are under consideration, but 1080p is the highest current standard.
you need a HDMI cable and 1080P media like a Blue ray disc and a HDTV with 10080P capabilities before you will receive full 1080P. For example most HD TV programing is only 720P and will not be in full 1080P on a 1080P HDTV and a TV show in 480i standard will be in 480i on a 1080P HDTV
Best screen resolutions continue to be 1080p for plasma screens. This provides the highest color ratio to back ratio available in plasma scrrens known today. As screens get larger 3.2 ratio utilizing 1080p is top rated.
If one has a 1080p LCD screen the number of pixels the screen usually will have 1920 pixels in length and 1080 pixels in width. The 1080p means that there are 1080 lines of vertical resolution on the LCD screen.
1080 pixels per image
1080p signal may not work on a 1080i TV set. You may not get a picture, but just a blank screen. And that blank screen will not let you undo the changes because you cannot see anything on the screen. In this case, you may have to make an analog connection, such as a composite video connection, to your TV set just to undo the changes you have made. Or you have to press a combination of buttons on the 1080p signal source to restore the picture. I suggest you read the documentation that came with your 1080p signal source.
The best, and highest, HDTV quality is 1080p