Change the video signal from 720p to 1080i - Sylvania 6626LCT 26 in. LCD Television

Change setting on device connected to this tv. Simply your tv cannot handle signal it receives 720p, 1080i, 1080p, 30Hz, 60Hz etc

Unfortunately the highest video signal you'll receive through composite is 480p. To achieve anything higher than the said signal, you'll need to utilize either the component or DVI input of the projector. Those inputs will detect any HD signals.

Also if you've not done so already, you'll need to check the settings of your DVD player to make sure that it's outputting 720p and/or 1080i/p signal. Hope this helps you out.

Video Output Settings Adjust the system's video output settings. Select the best output settings for the TV in use.
1.
Check the resolution supported by your TV.
Resolution (video mode) varies depending on the TV type. For details, refer to the instructions supplied with the TV.
2.
Select (Settings) > (Display Settings).
3.
Select [Video Output Settings].
4.
Select the connector type on your TV.
Resolution (video mode) varies depending on the type of connector used.
Input connector on the TV Supported video modes (NTSC region) *1 Supported video modes (PAL region) *1 HDMI 1080p / 1080i / 720p / 480p 1080p / 1080i / 720p / 576p Component / D-Terminal *2 1080p / 1080i / 720p / 480p / 480i 1080p / 1080i / 720p / 576p / 576i Composite / S Video *3 480i 576i AV MULTI / SCART *4 480p / 480i 576p / 576i *1 The video mode options vary depending on the region where the PS3™ system was purchased. In North America, Asia and other NTSC regions, 480i video mode is displayed as [Standard (NTSC)]. In Europe and other PAL regions, 576i video mode is displayed as [Standard (PAL)]. For details, refer to the instructions supplied with the product.
*2 D-terminal is a connector type used mainly in Japan. The resolutions supported by D1-D5 are as follows:
D5: 1080p / 720p / 1080i / 480p / 480i
D4: 1080i / 720p / 480p / 480i
D3: 1080i / 480p / 480i
D2: 480p / 480i
D1: 480i
*3 Composite is the connector used to connect the AV cable that is supplied with the PS3™ system. S VIDEO is a format mainly used in Japan.
*4 AV MULTI is a format mainly used in Japan. SCART is a format mainly used in Europe. If [AV MULTI / SCART] is selected, the screen allowing you to select the type of output signal will be displayed.
5.
Change video output settings.
Change the resolution for the video output. Depending on the connector type selected in step 4, this screen may not be displayed.
6.
Set the resolution.
Select all resolutions supported by the TV in use. Video will automatically be output at the highest resolution possible for the content you are playing from among the selected resolutions.*
* The video resolution is selected in order of priority as follows: 1080p > 1080i > 720p > 480p/576p > Standard (NTSC:480i/PAL:576i).

If [Composite / S Video] is selected in step 4, the screen for selecting resolutions will not be displayed.
If [HDMI] is selected, you can also select to automatically adjust the resolution (the HDMI device must be turned on). In this case, the screen for selecting resolutions will not be displayed.
7.
Set the TV type.
Select the type of TV in use. Set when only SD resolution (NTSC:480p / 480i, PAL: 576p / 576i) is to be output such as when [Composite / S Video] or [AV MULTI / SCART] is selected in step 4.
8.
Check your settings.
Confirm that the image displayed is at the correct resolution for the TV. You can go back to a previous screen and revise the settings by pressing the button.
9.
Save your settings.
The video output settings are saved on the PS3™ system. You can continue on to set audio output settings. For details on audio output, see (Settings) > (Sound Settings) > [Audio Output Settings] in this guide.



Source: http://manuals.playstation.net/document/en/ps3/current/settings/videooutput.html

To change this setting, you must exit the application and change your Video Output Settings from the display settings option in the Settings menu. Make sure the tv is not set on 720p/i and that it is set to 1080i. There has been issues with games that are 1080 downscaling the resolution. this can be confirmed by reading this article. if you provide me with the model of the tv. I can help assist you in ensuring its on 1080p. If you need further assistance please let me know after you try the following above. Thanks, Midwest-tek

Please make sure that your receiver can display high definition signal, such as 720P, 1080P. As you know your HDTV is high definition source, it can only be displayed on the display machine that have ability to display high definition HDTV signal.
This will help. Thanks, please keep updated. please do rate the solution positively .thank you for using fixya

The TV has a automatic scalier chip installed so it depends on the input signal that you are using. For example you are using a HDMI connection with a xbox 360 and you set the display setting to 720P then the TV will display it in 720P. If you set it to 480P then it will display it in 480P.

If you are using the component connection, make sure you are connected to the one that will support 1080i. If that is not the problem, make sure that the HD receiver is outputting 1080i and not 720p. No RPCRT will support 720p and the video may be down-rezed to 480 since this is the case.

The Auto setting does exactly what it sounds like. It detects what the native signal is coming in e.g.(480i, 480p, 720p, 1080i, 1080p) and auomatically sets the box to the optimum setting. P=Progressive scan. I-interlaced. Progressive is much better than interlaced. 720p actually has more clarity than 1080i. Basically 1080i=520p! So I would set it at 720p if possible. But automatic is the easiest with the least amount of configuration. If you set it for 720p, then odds are you will have to set yout tv to 720p also.

Go the the settings on the cable box. look for output resolution, then change it to 1080i and 720p. now turn the box off and back on your tv will now display the input of wither 1080i or 720p depending on the hd channel your watching.