Agree with gnkopsteWith a couple of "check" items which seem obvious but it's easy to forget one of these and you can frustratingly loop aimlessly around fixes without it working.
1. Make sure the SmartTouch can "see" the TV (thats where you will point it!)
2. Make sure the wired external remote device from the One Connect/TV device can "see" all the devices needing control (this is the "IR sender").
3. Don't move all the devices until you're all confirmed as working, THEN move one at a time making sure remote functionality still works until they are all where you want them inn the room/cabinet
these 3 seem obvious but will save you wasting a lot of time because the external IR device is very sensitive to position and direction.
As a semI-permanent fix i finally duck-taped the external IR device to the inside of the AV/TV cabinet so it was invisible to the room but could see all my 4 HDMI devices (Set-top, AV Receiver,AppleTV and PS3/BR-DVD).
If anyone has a way to control the Apple TV as a "DVD Player" in universal remote setup , so the Apple TV can be used when connected to the "Home Theatre" device, then this would be appreciated ?... you can't connect a HT device through a HT device !!! ... and so we are all faced with the inability for the TV to HDMI-Audio-return the AppleTV studio signal (dolby/5.1) back the the AV receiver and so only ever get dolby/5.1 from the TV-derived sound and smartTV Apps.