I just bought a Philips universal remote from wal-mart because my old all-in-one or whatever is dying. I put the batteries form that one into this Philips and put the first Philips code in..it wasn't the right code. But afterwords none of the buttons would make the red light go on. So I thought the batteries were dead and replaced them...and then the red light would come on but NOT come off. I got some brand new batteries and put those in there, same problem. I let it sit without batteries for probably over an hour then put them back in, same problem. I let them sit there for over 10 minutes with the light on and it never came off. I can't find the remote anywhere online, on walmart's site, or Philips's site. Or even Amazon for that matter. It's pretty annoying.
The corner of the manual says PM335..I googled that and it is NOT the same PM335.

Wow, awkward, nevermind, I just put the batteries back in and the light is off. That was weird.
Still strange that I can't find it anywhere on the internet, not even the Philips website.

Well, this thing is going back. It likes to randomly "lock up". IE..the red light goes solid and no inputs are recognized..I take the batteries out for a while..put them back in..then the red light won't come back ON and no inputs are recognized. Which eventually leads in me putting the code back in several times a day.