Any Roku users here?

Not sure if this is the correct forum, but it's the closest I could find.

I received a Roku unit as a gift a few years ago and plugged it into our fairly new flat screen TV. Worked fine for a while, then we started getting the HDCP error screen. So each time I followed the instructions (basically, unplug everything and plug it back) and got it working again. This happened several times over a period of maybe a couple of months, then suddenly it was working fine.

More recently, we plugged it into a brand-new flat-screen TV. Fine for a few months, then the error screen started again. So I went back to the plug/unplug drill, but over the past few weeks the error screen has come up three to four times over a period of maybe an hour and a half. Sometimes, if I just give it a couple of minutes, it goes back to showing the program.

I've looked for solutions online and on the Roku web site, but they basically just say to do what I've been doing all along.

Could it be a defective unit, or do these things just crap out after a few years so you go out and buy a new one, or is there a "real" solution to this?

Thank you.