I've discovered that I can't set the sleep timer on my TV anymore. I'm not sure how the Humax could interfere with it, and I'm not totally convinced it is.
What happens is, I press the Options button on the Sony remote and nothing happens, other than the TV's LED blinking to indicate it recognised the click. I'd suspect the remote batteries but power on/off, the HDMI selection buttons, and volume controls are still working. Somehow I was managing to make things happen on the Humax by pressing a button on the Sony also.
I don't know if the Humax is recording my IR activity and re-transmitting it or something, but if so, how do I stop it? I want the two remotes to remain separate. The TV isn't only for the Humax, there are many things plugged into it (BR, Wii, Roku).