Hi...I've have had problems getting the RC9800i to control my HP 6580n DLP TV...the codes in the remote (Hewlett-Packard and HP) don't work. Autoscan doesn't work. And when I try to use the learn code function--sometimes it says it recognizes it, sometimes it says it didn't. Either way, the TV is not responding to the signals from the 9800i. I even tried the codes for other major TV brands on the off chance it would work. But no dice. I called Philips service and they didn't have an answer other than the frequncy of the 9800i remote may not be high enough. My Harmony 880 can control the TV and I even tried having the Philips learn the Harmony's HP-related codes...still no luck. The 9800i can control all the other equipment and the firmware on the control was updated just the other day. I even played with the delays (blindly, however,) and that didn't work. Any suggestions greatly appreciated ... cheers