Hi XC90:
I have a Harmony One set up with these 3 Activities: Watch TV,Watch a DVD,Listen to Music.
My Hd DVR is the QIP 7216 P2
All 3 Activities in my System has been working great for years .
My original STB Remote was the VZP265v1.1 all of whose functions are now done by the Harmony One
Hope these other references that are listed below will get you to your solution.
Harmony 1100 User Manual
http://www.logitech.com/assets/44641/3/harmony1100-user-guide.pdf
Precision Ir cables
http://www.logitech.com/en-us/product/harmony-precision-ir-cables?crid=1052
Cisco CHS335HDC set top box Manual
Installation Guide
http://onlinehelp.verizon.net/consumer/bin/pdf/4033272a_user_guide_chs_335hdc.pdf
IR Sensor Receives the infrared signal from the remote control
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