This distills and continues conversations from HERE (click) and HERE (click). The new firmware 1.02.27 (both HD- and HDR-FOX) brings with it an on-screen alert (in the form of a graphic which flashes up for a couple of seconds) to tell you when you press a mode button on the remote control (RC) handset - those are the row of four buttons at the top labelled "PVR", "TV", "DVD", "AUDIO". It seems unnecessary and pointless (downright annoying in fact), but we speculate that Humax have had a lot of support calls from idiots who couldn't work out why the handset wasn't working (yes, we've probably all been there, but we were not idiots enough to call Humax support). I don't really see how this would help, pressing a mode button accidentally while the TV or Humax were off (or just not looking at the screen) wouldn't give you a warning in any case. Further, it is reported that if you have the right edition of RC handset (type "MDB" as shown on the label inside the battery compartment), you get an on-screen warning if you press a control button that is inappropriate for the current mode - though how the heck it can know that is beyond me, you might have a TV with a media player built in that responds to the "Play" button. Frankly this seems like a step beyond a step too far. Update (made after THIS POST) It seems that some RC handsets are mislabelled. Although I have two handsets labelled "ADB 1.0" inside the battery compartment, one responds to 3-digit device codes and the other responds to 4-digit codes. The Humax documents which list the codes (see the Index of Topics under Hardware) hare called "adb 1.0" for the 4-digit codes and "mdb 1.3" for the 3-digit codes - which is suggestive. The 4-digit code handset does not produce the mode graphic pop-ups, or bring the HD/HDR-FOX out of screen-saver mode, when a mode button is pressed. On examination it does not emit IR when the mode buttons are pressed. The 3-digit handset does. I have been unable to bring up the "you've pressed an inappropriate button for this mode" message with either handset, but following input from ChrisDaniels I have shown that (on the 3-digit handset) pressing a command button within a mode which has not been programmed, a message come up telling you to press the PVR button. This again supports the idea that it's there for dummies. HHGTTG (again): "What happens if I press this button?" "Don't!" "Oh" "What happened?" "A sign lit up saying 'please do not press this button again'!"