The Insignia Brand is made by XOCECO, in China, although the specific models may have different manufacturers within their network. A more detailed explanation can be obtained from the link I found below :)

http://www.ceqna.com/tvs/1323-tvs-4.html

Insignia is Best Buy's house brand, and different models are shipped out to different manufacturers. The nearest I can find -- and I can't confirm this 100% -- is Coby is the manufacturer for the NSLCD37.