Are a dime a dozen these days, and I bought one as a backup to my other remotes. The only problem with these things is that you need to know the codes of the remotes you want to emulate, and those codes are usually in the manual. Of course I tend to lose manuals like pens, so I figured I would put the codes online where I could find them. In time the site evolved as more links were added, and here we are today.If you have a remote for which you know the codes or a web page that lists them and are feeling generous or see any links that need correcting, type them up and see the contact page to submit them.

Website: http://www.xdiv.com/remotes/