Comcast is making a push into gaming by partnering with Amazon to bring that company’s gaming platform Luna to its X1 set-top boxes and Xumo Stream Box, the companies told The Desk on Thursday.

Streaming should feel effortless, but slow speeds, buffering, or confusing setups can ruin the vibe. Whether you’re using Xfinity Stream, discovery+, or your smart TV’s built-in apps, knowing how to ...