I have searched this thread but found noting directly relevant - if there is, please let me know.
I just had Charter install the new Cisco 8640 HDC in place of my older Scientific Atlanta they had earlier supplied.
I wanted the greater HD space, but also had been having a minor problem with the old DVR responding sluggishly to the remote or fast scrolling when in the guide even when I just hit the up/down only once.
The Charter tech replaced the DVR, but we found the remote problems WORSE.
I had recently purchased a Samsung PN59 530 plasma, replacing my 46" Samsung LCD. After running some tests, the tech concluded that the new TV was causing the problem, presumably throwing out so much IR that it was confusing the DVR or getting into some sort of loop. We replaced the HDMI cable, used AV in, and bypassed my AV receiver (also Samsung), with no improvement. He hooked up a little LCD test set, bypassing my set, and the remote/DVR behaved normally. He concluded this was an IR conflict,first he'd seen with a Samsung.
I did some searching online for IR conflicts and the "fixes" ranged from putting auto window tint over the DVR to lowering the brightness on the TV a great deal, to using an RF remote (if that's possible).
I tried covering the face of the DVR with cardboard, first in part and then totallu, to see if I could locate the IR sensor on the DVR and then put some sort of tint over that, but the DVR still picked up a signal from the remote even with the face loosely blocked!
Anybody have any ideas short of going back to my old TV and/or DVR?