T430 1600x900 i5 Core: Mini DisplayPort To HDMI 1920x1080 TV Resolution And Sizing-Overscan Problems

Question

Hello, and thanks in advance for any help.  Also, my apologies if these issues have been previously resolved; I've spent 2 days searching for answers and none of my effort has resulted in a solution, either here or elsewhere.  
I very recently for the first time connected my ThinkPad T430 2344-5GU (i5 core, native screen resolution 1600x900, Intel HD 4000 v9.17.10.2843, NVIDIA Optimus NVS 5400M v9.18.13.1100) to a Panasonic HD TV (native screen resolution 1920x1080) using a Mini DisplayPort to HDMI connector, with the hope of playing 1080p movies on my laptop while watching them on the TV.  This seemingly worked fine at first--both audio and video were present--but I quickly noticed that the image on the TV was, very slightly, larger than the image on the laptop screen (cutting off roughly 5% of the image on each of the 4 sides) and that the resolution wasn't 1920x1080.  So I hunted for a solution.  
Windows display properties were no help.  In fact, as soon as I tweaked something there I lost the picture on the TV (the options available are "Show desktop only on 1" (the laptop screen), "Show desktop only on 2" (the TV screen), and "Extend these screens", which annoyingly turns the TV blank yet allows the cursor to to enter the TV screen depending on the chosen layout and the cursor's approach direction to the TV).  So, from having a functional-if-slightly-oversized-and-lower-quality picture on the TV screen I went to nothing, at least for my desired use.  
Further research led me to the Intel HD 4000 settings, but those didn't even show that multiple screens were in use when the TV is attached.  Finally, I tried using the NVIDEA Control Panel, but although multiple displays seem to be supported the best I can do when cloning is have the screens' resolutions meet in the middle at 1440x900, which makes them both look worse than the original plug-and-play result described above.  Heck, I went so far as to enter the BIOS and try every combination possible under "Graphics": no NVIDEA, Integrated, Discrete, each with and without "Auto Detect NVIDEA capability" enabled and disabled.  I even updated the NVIDEA driver to their newest, a version not available at the Lenovo Support site.  Nothing.  And worse, ever since my very first tweak under Windows display properties I wasn't able to return to the original  functional-if-slightly-oversized-and-lower-quality picture.
At this point I used a very recent image to return my system to it's Pre Original Tweak state (allowing for the  functional-if-slightly-oversized-and-lower-quality picture originally obtained), which is better than nothing, I guess, but surely not what I'd expect from a higher end laptop.
Please, does anyone know if there's a way to connect my T430, native resolution 1600x900, to an HD TV, native resolution 1920x1080, while actually maintaining each screens respective native resolution and not losing any of the image?  Thank you again for your time.
Edit:  After more research I've fit the desktop image to the screen by adjusting the TV's "Picture/Advanced picture/HD size" setting from "Size 1" to "Size 2".  Now my only question is if it's possible to somehow play a 1080p movie at the TV's native resolution of 1920x1080 or if I'm stuck with the laptop's navtive resolution of 1600x900.

Answer 1

Try grabbing the latest NVIDIA driver off of the NVIDIA website. It might help.
Extending it should also allow you to run the 1600x900 T430 screen plus the 1920x1080 TV screen each at their native resolutions.
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