1080P on 720P television harmful?

Question

I have an interesting issue with a high-definition telivision my wife and I recently purchased. We bought a Dynex HDTV from Best Buy that was supposed to be 720P. For the last couple months that's been fine. However, recently we bought a DVI-to-HDMI adapter for my dekstop and a Sony Playstation III Slim. When we use the Playstation or the computer, the upper right hand corner of the television displays 1080P, not 720P like it used to. The quality looks much better than it did when we had 720P running through the computer and our old blu-ray player (an LG), but I'm worried I'll burn out the television faster than I would using 720P. We also managed to adjust the Playstation to display in 720P, but the quality isn't quite as sharp as when it's in 1080P mode.

My questions are this: 
     First, could Best Buy have accidentally given us a 1080P television? We noticed that it was different from the display model we had picked out, such as the hookups and the button placement, the lack of an S-Video plug which the display model had, and two HDMI plugs instead of one. The booklet that came with it is generic, for all Dynex televisions of this type, and doesn't say how to tell the difference.
     Secondly, if that's not the case, will continuing to run the television in 1080P display mode ruin it or shorten its' lifespan? I've read on other sites that some televisions will automatically downscale 1080P to 720P to keep that from happening, but I have a friend with a two-year-old Dynex the same size and in 720P, but if you set it to 1080P, it simply won't display.

     I would greatly appreciate any answer to this predicament, as I want to get the best picture possible without destroying my new television. Thank you all for your time and patience.

Rich · Accepted Answer

If you are using a PS-3, it puts out 1080p.....If your set is 720p, it will downconvert, but still look a bit better due to the progressive scan, and 1080 feed. Will not hurt your 720p TV... The 1080 logo is probably coming from the game machine. Good luck, Dynex is a low end TV...

Bart G · Answer

Some Dynex TV were mislabeled as 720p sets. They do in fact, support 1080p. A digital signal is either one or the other (IE: on or off). Even if your source is up scaling the TV doesn t care, it just tells you what it s getting and displaying. 
Rest assured if you TV says it s displaying 1080p from the source then it is actually capable of displaying 1080p.

holts · Answer

"...i might desire to understand if some area of 1080p picure is minimize-OFF " No. The ratio & length is an identical. there is in basic terms greater lines of decision in a similar area with 1080. i could recommend you tell the BluRay participant to output 720 so the television does no longer might desire to waste time down-changing each and each physique of video. this might reason the video and audio to get out of sync. CROPPING AND RATIO this may be a perplexing subject remember so permit me clarify. All HDTV television shows are shot to precisely fill a sixteen:9 exhibit screen. yet movies are shot in dozens of distinctive ratios for the action picture instruct. in case you pop in a BluRay disk of a action picture - you will probable have some black-bars because of the fact the BluRay participant is making an attempt to instruct you the right ratio seen in the theater. This has no longer something to do with 720 or 1080. It has to do with the ratio of the unique fabric. i'm hoping that is sensible.

daMOman100 · Answer

Check the box it will say 720 or 1080, even if it is 720 it will say 1080 as that's the signal it receives but it downs it to 720, so it kyats says 1080 but your getting 720 still.

1080P on 720P television harmful?

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