What do I have to do to set it up to the Device (TV, DVD player, Etc.?
Simply Install batteries and it will work. No programming necessary (unless otherwise stated).
Will the button in between the volume and channels allow us to access all of the apps like the 'via' button on the xvt323sv and xvt373sv does?
Yes. This is the same button.
Where can I find the manual for my remote?
Because most of the remotes are original equipment remotes, all instructions for the remote is located in the owners manual of your unit. If you do not have the manual of the unit, find your model number of your TV (Dvd player, etc.) and search our site for it. If we have it, it will show and all information about the remote (including codes) will be located in the owner's manual.
Will I need to program this remote?
No. Most of the remotes we offer are original equipment remotes and do not need programming (unless the remote is labeled as a "Universal"). It will work for your unit right out of the package for the models that are shown in the "guaranteed to work with the following models" section.