Hi Anjelie, thank you so much for the response. I did try switching HDMI ports, and still nothing. And I don't have another TV. Just my one that I've always had. The problem is is that I am not getting any kind of response from the Roku box. Roku is trying to load, but can't/won't. Loading screen pops up, then my screen goes black/says "no signal". 10 minutes later, Roku tries to load again, then screen goes black/says "no signal". And it just repeats this cycle for hours. I've powercycled my TV, Roku, modem and router and still nothing. In fact, I've powercycled my Roku at least 10 times, even left it unplugged for 2 hours last night just to make sure it was fully off... and when I plugged it back in.... nothing. Loading screen came up then went away and the screen went black/said "no signal". I've done everything short of resetting, which I hesitate to do since I can't remember the majority of my passwords.
It's just weird how it went from working just fine to not responding at all and not even being able to load within just a few hours.