Helping the 37LT75 get the best out of its sources, be they Freeview standard definition or an external high definition player, is LG's proprietary XD Engine video processor. Targeted at the usual suspects of improving colours, black levels, details and motion, XD Engine hasn't proved quite as effective on previous LG TVs as some rival processing systems. But we'll reserve judgment for now.
Other noteworthy titbits include a black level booster; acceptance of 1080p/24 signals via the TV's duo of HDMI sockets; a PC port; and the ability to tweak the XD processing system's contrast, colour, noise reduction and MPEG noise reduction elements manually if you're not happy with how the ‘auto' XD Engine setting is working.
Actually, I'd recommend that you do experiment with these settings, for I definitely felt I managed to improve things on occasion by manually adjusting the XD contrast and colour constituents.
Focussing first on the 37LT75's Freeview Playback performance, it's a relief if not exactly a surprise to find its recordings every bit as accomplished as those of the 42LT75. And so, as we suggested earlier, things recorded from the digital tuner really do look identical to the original broadcast. Job done.
As for analogue recordings, they too look excellent using the highest quality setting, and still decent using a mid-level quality setting. Only the lowest quality setting is best avoided unless you want to relive those rubbish old VCR days!
Oddly the 37LT75's core picture quality doesn't seem quite as likeable as we found it with the 42in screen, mostly because black levels suddenly don't look anything special. It's hard to say without having the 42in model in front of us any more if the slightly cloudy look to black parts of the picture is actually worse on the 37in, or whether we're just noticing it more because of the quality of some of the latest LCD TVs we've seen since Christmas. But whatever the explanation, notice the odd black level issue we most certainly did.