Hi
The LZD85 was a top end model at the time from Panasonic which was the only Full HD 100Hz tv available, so to keep the quality high when moving from 32" to 37", you need to get the following Panasonic's if you plan to stay with the same brand, the model's are: TX-37G10, TX-L37G15 or the TX-L37V10. The G10 series would be the direct replacement to your LZD85 model as it has the Full HD screen and the 100Hz processor. The G15 is a step up if you want a really good sound aswell as some other features. As for the V10 series, its the top of the range, best picture, best sound, design and features galore. So the choice lies with you. All great tv's!
Regards> M
Panasonic Store, part of the Panasonic retail partner group
Panasonic TX-P46Z1, Pioneer BDP-LX52, Yamaha YSP1100, Humax FoxsatHDR, B&W ASW610, Clearer Audio Copper Line, Van Den Hull Flat, TCI Coral, Russ Andrews The Mains Block and Classic PowerKord.