My wife and I recently purchased a Roku Ultra LT. For the most part it's been working fine, except for one weird issue: once in awhile it seems like the signal drops out for a half second or so. The screen will go black, the audio cuts out, and when it comes back in the video has continued as if nothing happened. The TV also displays the input source info, which it normally only does when we switch sources, or it detects a new signal on the active input. It happens in multiple apps. The Roku and all apps have the most current update
My TV (Sharp LC-46D65U) does have a feature where if you power on the non-active input the TV will automatically switch to that new input, to make sure this isn't the issue we've disconnect all other devices from the TV. We have tried the Roku on different inputs, and with different HDMI cables. We have had two different Roku 3s connected to the TV in the past and never had this issue. I also tried disabling the "sleep after 20 minutes" option in the power settings menu", but that also didn't fix it. Was hoping people might have other ideas for things to try, other than testing it on another TV, which we're already planning on doing.