Samsung sold the LNS4695DX/X as a 1080P TV it only 1080i

I have similar problem , ps3 320gb + 5 years old sony bravia 1080p = everything OK
but when i connect ps3 to new samsung ue46d7000 1080p = doesn't work (only 1080i)
I am using same HDMI cable

Your DVR can't detect whether your TV can do HD or not. If the message is stating that your receiver (which is your DVR) can't receive 1080P, then you'll need to contact DirecTV for assistance. You may need to replace your DVR.

no it dosent

It has nothing to do with the tv. Its all about the source. There are vey few sources that are capable of 1080p Blueray is one. Dish Network now has dish on demand in 1080p. Also that source has to be hooked up using high speed HDMI cable.

1080i vs 1080p - Similarities and Differences Between 1080i and 1080p
How 1080i and 1080p Are Both The Same and Different
1080i and 1080p are both High Definition display formats for HDTVs. 1080i and 1080p signals actually contain the same information. Both 1080i and 1080p represent a 1920x1080 pixel resolution (1,920 pixels across the screen by 1,080 pixels down the screen). The difference between 1080i and 1080p is in the way the signal is sent from a source component or displayed on an HDTV screen. In 1080i each frame of video is sent or displayed in alternative fields. The fields in 1080i are composed of 540 rows of pixels or lines of pixels running from the top to the bottom of the screen, with the odd fields displayed first and the even fields displayed second. Together, both fields create a full frame, made up of all 1,080 pixel rows or lines, every 30th of a second.
In 1080p, each frame of video is sent or displayed progressively. This means that both the odd and even fields (all 1,080 pixel rows or pixel lines) that make up the full frame are displayed together. This results in a smoother looking image, with less motion artifacts and jagged edges.
Differences Within 1080p 1080p can also be displayed (Depending on the video processing used) as a 1080p/60 (Most common), 1080p/30, or in 1080p/24 formats. 1080p/60 is essentially the same frame repeated twice every 30th of a second. (Enhanced video frame rate.) 1080p/30 is the same frame displayed once every 30th of a second. (Standard live or recorded video frame rate.) 1080p/24 is the same frame displayed every 24th of a second (Standard motion picture film frame rate.)
For more detalis visit http://hometheater.about.com/od/televisionbasics/qt/1080ivs1080p.htm

No. Most broadcasts are limited to 1080i. BlueRay discs and (now defunct HDDVD) are the only time you will see 1080p. I heard DirectTV may also be running 1080p soon (or already have the option). In any case, 1080p requires 2x the bandwith vs. 1080i. I assure you that unless you see them side-by-side, you will not notice the difference. You many not notice the difference when you do see them side-by-side. The broadcast controls the 1080i vs. 1080p (not a setting on your TV).

Connect a source that puts out 1080p. Blue ray dvd or Some video games. No broadcast is 1080p. Broadcast HD is 1080i. i is for interlace p, is for progressive scan.

Resolution such as 1080p,1080i etc. set by your source of the signal, for example, if your cable box set to 720p that is what you going to get from the TV. Cable box is ont capable of resolution more then 1080i because there is nobody broadcast in 1080p yet. Only way you can get 1080p is BD player, upconverting dvd player or media player. 120 Hz is just a frame rate convertor - takes stendard 60Hz and doubles number of frames to 120. So, you will see 120 frames per second instead of 60.

cannot increase the resolution of the tv. but your tv supports 1080i

the xbox 360 does not brodcast at 1080p and no tv channals are in 1080p yet. Blu-ray and HDDVD is the only thing in 1080p yet