So I have a new roamio, have had it for a while. I also have one other Tivo (premiere) that I am replacing with the roamio. All seems ok except for the following: 1. On one channel I get no sound. (ABC) the weird thing is that our cable system has both HD and SD broadcasts, on BOTH of these channels I get no sound. All other channels seem fine. Because the wife watches pretty much only ABC.. this is a problem. On the premiere all is well, sound on both, on the roamio.. no sound. 2. I have a new mini and if I let it sit a while it gets live TV and I can use the channel buttons up or down to change channels but as soon as I try to go to Tivo central I get "Living Room Cannot be found", then if I go to live TV again, it bongs out. I let it sit for a long while or reboot, we get live TV again. Obviously the mini is setup right or I would not get any live TV (it's Ethernet) 3. The video from the roamio has lower contrast (very grey-ish) in the video picture, all channels even menus.. it's weird. can someone shed some light please?