I have been looking for a remote that would work correctly after having to return several remotes I purhcased an AUVIO and it finally worked for the Apex LC4088. You can get this remote at Radio Shack. Code that worked was 438.

When I bought this at Target on black Friday, I did not realize the remote was missing. I had a spare universal laying around. Went online for codes and found nothing but codes that didn't work. Bought a low-end one at Target (who refused to give me one after the TV's sold out, said all I could get was a refund but I got a GREAT price on it and didn't want to spend another 150 to replace it.) Low-end remote did not work, returned it and bought a 70 dollar remote and that didn't work either. Got fed up and called Apex, who jerked me around twice before finally telling me there is a special number if you buy it at Target. Called them and they said fax the receipt and serial number and they would mail me a new one. Did this TWICE and never got a remote, called and demanded a supervisor and explained the situation, he ask my name and info and within 5 minutes I had a conformation email with a tracking number. The aim sucks, but it's not the TV, it's the signal on the remote being weak. The supervisor told me there is only 1 universal remote they know of that works with the TV since it is so new. His name is Marcus Chan and his email is [email protected]
Hope this helps!!!

I also have had problems with the remote. It is of very poor quality and hardly ever responds to the tv. I have to jump up and down to change volume/station which is very frustrating. I have not been able to locate any code that will program a different remote.

Replacement remote is here

http://www.emtcompany.com/apex-ld4088-remote/rc64.html

You need to point it pretty precisely towards the blue power LED area, seems there is just one IR sensor. *sigh*