
How did your friend notice little difference? OMG...
This is a simple explanation of the difference between them, there's a lot more to it than this, but ill be brief...I have both units BTY..
The T3 hardware is poor. It's like the S1 when it first came out, almost a beta of a P1 and P2. Lots and lots of areas of common fault and breakdown, especially the tuners. The T4 is HUGELY improved hardware wise. That alone is not "testable" without choice taking them apart and evaluating them, but even then without real world experience about the hardware its impossible to properly test that point, so in other words no review like Choice completed will ever reliably report these things...
So hardware quality aside lets look at the T4 differences... Well compared to the T3, the T4 has...
* Gig LAN vs 100mb
* HDMI IN vs no input
* WAAAAAAYYYYYY FASTER CPU vs SLOOOOOOOOOOOOOWWWWWWW - I cannot believe that your friend didn't notice a difference in boot time alone, its close to 3 times faster at booting up from deep standby.
* Hardware quality improvements beyond belief
* IMHO better quality tuners
* 4 of them too vs 3 in the T3
* Way better OLED front display vs similar crappy display to the older wizes, that on many machines has uneven brightness from one side to the other (another wonderful quality control issue on the T3)
* Vastly simpler and improved PSU
* Actual 1080p output vs 1080i
I really am amazed he couldn't notice any difference... They are like chalk and cheese.
I've been testing a T3 to train up my wife on it before I purchased the T4, and even she has noticed a huge difference.