Update:
Those running htpc to be extra cautious during early panel hours
as slight retention mark would come in on still image even for time like 10+ seconds tho those 'mark' are temporary...

1) Buzzing - so far no, hopefully not 
2) I find LCD too bright for me.
3) Flicker - I find sometimes but S10 is worse
4) Hot - S10 is much hotter than B650
5) Astro - later of the year Astro would have HD channel (stage by stage tho), I watch HD content mostly of the time

Features that I like (add on):
1) Much better GUI compared to S10
2) Networking (wireless/ LAN)

Much like a pros and cons situation. Strongly suggest V series for those with fat wallet like our TS. 

IR can be solve easy only.As i tried and it was successfuly.

STUPID 
I just realised I didn't turn IR protection in menu.
Default it's OFF.

Update on my set:

1) IR is not as bad as it seems. Only visible if i search for it. Watched a movie for 2 hours with the black bar. Yes, IR will appear when i switch back to astro but disappears about 1/2 hour later. Does not concern me when I do normal viewing for normal shows on Astro. If i want to quickly remove the IR, samsung has a "window washer" setting that can be run. If i set that on, even the most stubborn IR stains will go away within 5minutes or so.

2) No S-Video Manage to tweak the colors to be more accurate. The upscaling for SD content for this Samsung is better than Sony's BE2 engine (as comparison).

3) Buzzing sound getting less (or I got used to it).

4) Manage to use my Nokia N82 phone with the DLNA feature. Now i can stream my home video / photos recorded on my phone directly to the TV. This is actually quite cool but useless feature.

5) Reflection on this set is really under control. In fact, i went to compare the LED LCD Samsung vs this set and the LEDs are even more reflective! Hate looking at my half naked body when i watch movie for dark scenes.

if can afford, go with what d heart say lorr.. wah, at 5550, good price oredi right.. though abt d same price, seems everybody here think d sammy P50B650 is better than d panny P50S10..

i also might change direction.. been saving to get d panny.. if we double up order, can get sammy go cheaper ka?

This shop even can deliver the same day if I wanted too but I prefer to get the set during this weekend when I move in my house.

And the final price I nego for this set is at RM5550 but without extended warranty (1 year panel, 2 years parts).

The shop fella told me don't worry on the warranty as this set can easily last for many years to come as Samsung reliability is on par with any other Japs brand based on the faulty return unit although I'm still a bit leary to decide whether to extend the warranty or not.

Anyway, can't wait for my set to arrive this weekend 

And those who left me a pm, u got the reply and hope we can form a new B650 owners 

Not during normal viewing but when I change inputs or channels, it can be seen when the screen blacks out for a short moment. This also happens during the day, but after some time, there is no more IR.

Does anyone know if this tv can play videos via USB connection?

i am using the series 6 50" plasma fy10 production ~ watch 2 movies about 5 hours in 16:9 resolution with black bar at the top and bottom of the screen.
so far no IR issue as describe, probably it depends on the batch of plasma panel.