Your DVD is connected to your TV on HDMI 3?
You also said, "TV also on HDMI 3" ?

Out of curiosity do you have a Surround Sound Receiver within this mix? I ask because I am unclear about your setup.

The problem you are experiencing could be any # of a few basic, yet different things such as:

1. Your Interkey delay settings need adjustment. In other words your TV is being hit with a command for a different device and is trying to process it while the command for the TV follows but only when the TV is busy.
2. I've watched clients not point the remote at the TV long enough (Human nature I guess)

I need a little more info in order to pinpoint the solution

[Link: allabouthomeelectronics.com]

[Link: allabouthomeelectronics.com]