I've had a DirecTV HR21 connected to my LG 3D TV and whenever I switch to one of the 3D channels, the TV automatically switches into the correct mode and then back when I go back to a regular channel. When I try the same thing with the XL4 using the T-W 3D Olympics channel, the TV does not detect it and I need to manually put it into the correct 3D mode and same when I leave the channel. Now the carrier is different, as is the channel and DVR so I'm not sure where the issue is. Does anyone else have 3D mode switching issues? Sorry, meant to post this in the Premiere section.