I am trying to program the remote that came with a new Vizio HD TV to operate my cable box from Cox (Las Vegas, use Scientific Atlanta Explorer 4240 DC). The Vizio instructions call for a 5 digit code, but none of the choices in the owner's manual work. Contacted Cox, but they say they only have a 3 digit code (which did not work).

Codes I tried from the Vizio SV320XVT manual for Sci Atl...
01877,00877,00477,00237,00003, 00000, 00008,00012, 00017,01510

Again, looking for alternative 5 digit code (ideally, perhaps from someone using the same cable HD box?)

Thanks all

Does your Cox remote look like one of these: [Link: urcsupport.com]?

If so, click just below the image of your Cox remote and follow the instructions to blink back your setup code.

The Vizio remote uses the same setup codes as the Cox remotes pictured in the above link, so you can just enter it into the Vizio remote.

I'm betting on 01877.  Since you've already tried 01877 with the Vizio remote, please make sure that the Vizio remote blinks twice after you setup this code.  Oh, and make sure you're setting it up on the cable device button. :)

Thanks 3FG for the above link, which should prove a useful resource.

Unfortunately I had no success both in retrying 01877, and also in the new codes from the above link (I assumed I add a zero for a 5 digit code if 4 digit codes are given).

New thought: I now think the problem might be in a defective remote I received with the Vizio set. I have not had success in programming any of the electronics I have around the house - I tried 2 Samsung DVD's, a Samsung Blue Ray (though the Vizio manual only lists DVD codes not BR), and an old Sony VCR. I was afraid to try to program my SONY or Insignia TV's for fear I would not get the remote to return back to Vizio.

Not sure how I can confirm this thought, or what do next...

Does the cable box work with the Cox remote? What code blinked back to you? That's the code that should work in the Vizio remote, and there really isn't any point in trying other setup codes. Let me know what code blinked back from the Cox remote, and the Cox remote name. I can try to verify if your Vizio remote shoots exactly the same IR signals.

Can you find the model number of the Vizio remote? It may be VUR8 or 66700.
The Vizio remotes can't control a Samsung BluRay, but depending on the model, it should handle a Samsung DVD (20573). Setup codes 10000 will run most Sony TVs.

If the Vizio remote controls the TV, it probably works for other devices. To be honest, the problem is more likely poorly written instructions. Let us know which remotes you have, and the model numbers of a couple of the other components, and let's see if we can get it to work.

I can address some of your points, but I am limited by time until maybe a couple days from now when things ease up. Cable box works fine with Cox remote, I have had the current box for a few years now - it's just the TV in that room I upgraded. Not sure I know what you mean by "what code blinked back at you". The vizio is a SV370XVT which ships with remote VUR9M Remote Controller, Part No. 098003059100. The instuctions to program the vizio remote state to just turn the cable box on manually, then press the cable button on the vizio remote, then hold the set button down until it blinks twice (it always blinks once right away, and then a double blink a few seconds later). Instructions then say to enter the 5 digit code and if it blinks twice that should mean it works. What I always get is just a single blink after entering the code. The process does not use the remote from the cable box, as you would if one was programming a learning remote (which another one I use is).

The cable box is Scientic Atlanta Explorer 4240 HDC with the remote looking like the ones pictured in your first link. The Cox website now shows they use a newer 8000 series that I can switch out for if there was a reason.

I sent a email to Vizio support and they will reply by end of the day 12/31.

(Also just got a new Dell laptop, desktop, and new wireless so it's been a hectic few days trying to get everything up and running).

Again, thanks for your help. I'm really quite amazed by this forum.

OK, now I understand. When the Vizio remote doesn't blink twice after you entered a set up code, that means it didn't recognize the code, either because the setup code isn't in the remote, or the procedure wasn't correct (but your description is typical for UEI remotes), or the remote is defective. The VUR9M is new, and the Vizio site doesn't have instructions for it yet, so I do wonder if the instructions are exactly right.

I had asked you to blink back the setup code that the Cox remote is using, following the instructions in the link, in case the setup code was different than expected. But the VUR9 isn't sending the right IR signals, so you don't need to do that.

Hopefully Vizio support will help you, but one guess is that the VUR9 actually uses 4 digit setup codes, and you should be entering 1877 rather than 01877.