Black screen after trying to use mobile app with Roku Express
I have been using a Roku Express with my Sharp tv for a long time with no issues until I tried using the Roku mobile app today. I downloaded the app, was able to connect to the streaming device from my phone, and the remote on my phone seemed to work for a couple minutes. Then my tv screen went black. The tv and streaming device both had the power lights on still, and some sound was still coming through, but my tv won't display anything now. It won't even show the input options or anything when I try pressing those buttons on the tv. Does anyone have a clue how to fix this?