I changed 6 settings on my Roku TV to give it an instant performance boost

Few things ruin the joy of watching a good show more than suddenly seeing that rotating asterisk symbol or swirly icon that tells you your TV is buffering. Or maybe it's stuttering, or altogether freezing. If this is happening on your Roku TV, don't give up on it just yet.

Also: CNET survey shows Americans spend over $1,000 a year on subscriptions, and they're sick of it

Like phones and computers, Rokus have caches that accumulate temporary data, which inevitably slows them down over time. There are simple ways to clear up this hidden clutter and get your Roku TV behaving like its normal, healthy self.

Here are a few methods to clear your Roku's cache, improve its speed, and make shows play smoothly again.

1. Start by unplugging it

This one almost sounds too easy to bother with ...