I have a Vizio VT420M HDTV and had to replace the remote since the old one got lost. It had been working perfectly fine with my TV. I got a brand new replacement remote which is exactly identical to the old one. The new remote does not work however. None of the functions on it work at all. It is completely dead as far as my TV is concerned. I have checked all of the obvious things, such as putting in fresh, brand new batteries, making sure the remote was set to operate the TV, having a clear line of sight path to the TV etc.but it still doesn't work. I checked the Vizio user manual for my TV and it states that there is no programming required for the remote since it was built specifically for my TV.
The only thing I can think of at this point is that it is defective. I find that unlikely however but it seems like the only option left at this point. Is there something I am missing? I am completely stumped at this point. Thanks for any feedback.