Does it need an antenna to watch broadcast TV?

Yes. The built-in ATSC tuner needs an antenna connected to the RF input to pick up free over-the-air channels. A basic indoor antenna is enough in most strong-signal areas.

Can I connect a streaming stick or game console?

Yes. The HDMI port accepts a Fire TV Stick, Roku, Chromecast or a console. The screen is 720p, so HD streams play but at lower detail than on a 1080p set.

Is 12 inches big enough for a living room?

No. It suits one or two viewers at close range, such as a kitchen counter or bedside. For a living room, a 32-inch or larger set is a better fit.

Does it have a headphone jack or audio output?

Audio inputs are listed as RCA and HDMI, and the built-in speaker is small. Check the side panel for a headphone jack before relying on private listening; otherwise use the HDMI source's own audio output.

What comes in the box?

The set, a remote control and a power adapter are typical. An antenna and HDMI cable are usually not included, so buy those separately if you need them.