The issue is that Philips doesn't consistently use the the same signals among models of TVs for the cursor and OK buttons, so universal remote makers usually support one of the combinations that Philips have used. That's why I suggested that you search for the EFC that works.

Comcast remotes are setup at the factory to send cable signals when OK/Select is pressed, even when the remote is in TV mode, and this feature causes problems for a lot people, but you've already disabled that.