Best TV streamin device?

I have a good flat screen TV but not a smart one. I have a Roku plug in device, it worked good for a while, then it kept saying "low current", I really don't have an alternative circuit and the breaker box if full, no way to add a circuit.
Should I try another brand of add on streaming device?? I don't want to waste $ for nothing. Buying a smart TV is my last option. I have this good one now and another one like it as a spare.

It's not your outlet power, "low power (current)" usually means the USB port that the Roku stick is plugged into in the back of the TV is not capable of supplying enough 5V power to the Roku stick. Not that uncommon. Many TV USB ports were not designed to power devices but only to pass audio/video signals.

Did your Roku device come with an external power adapter? If not that's what you need or a different Roku/streaming device.