The only firmware you can install is one with the same name (as in Support-Software Menu).
November 2009 is quite a late version. A later one has just been released for European models.
I don't recall any significant user benefits from previous upgrades, and believe they have been for maintenance bug-fixes. Samsung have not made change logs public for most models. The latest upgrade can't be reversed, so I would say don't upgrade unless you're experiencing a problem.
Windows 7 has built-in media sharing. You just need to turn it on and it should appear as a source. Otherwise, the TV should come with Samsung's own server software.
Couple of questions before buying,
The TV Model i'm buying is LA46B650, I assume thats an asian or australian model (Not sure), Is it okay to upload latest firmware from UK or US? cus when I visit samsung website to search for that model, latest firmware is dated 27 Nov. 2009 version 2001.1 <- i think thats pretty outdated.
I've seen its earlier model A656, the picture pretty impresses me much, just the game mode (Found in Entertainment) is pretty dark to me, is there any possibility to customize brightness when in game mode?
I've read some users complain that network connectivity is lost/disabled when upgrading to some firmware, is that fixed in the latest firmware yet?
Is there like a change-log for all firmware updates? i'm curious what such updates could be for a TV...
I'm willing to stream movies (mainly bluray .mkv files) from my PC to the TV, on Windows 7 64 Bit, is that possible to be done? If so, please mention the best scenario...
Thanks in advance....