Ten movies that show off a 4K IPTV setup (and what to look for)

A 4K badge on a channel means the stream is capable of high resolution. It does not mean your television is showing it well. Testing takes ten minutes, and the right scenes make the difference obvious — dark detail, fast motion and fine texture separate a calibrated picture from a washed-out one.

What to check, in order

• Black detail: in a night scene, can you still see fabric and faces, or does everything collapse into grey mush?
• Motion: during a pan or a car chase, do edges smear? If yes, enable the TV's motion smoothing or game mode.
• Skin tones: faces should look natural, not orange. Most TVs ship with the colour temperature too cool.
• Fine texture: hair, rain and gravel are where low bitrate streams fall apart first.

Ten titles that make problems visible

• A nature documentary — the standard test for colour and detail.
• A modern science-fiction film with heavy night scenes.
• A period drama shot on film, full of texture and grain.
• A live-action superhero film with fast cuts and dark interiors.
• A racing documentary for motion handling.
• An animated feature, which exposes banding in gradients.
• A concert film for bright stage lighting and contrast.
• A football or basketball broadcast for live motion at 60 fps.
• A black-and-white classic, the quickest way to spot a bad picture preset.
• A recent blockbuster trailer on the channel you watch most — the honest test of the stream you actually use.

One setting most people get wrong

Turn off your television's dynamic contrast and sharpness boost. They make a showroom picture look punchy and a film look artificial — crushed shadows and glowing outlines. Filmmaker or Movie mode plus a warm colour temperature is closer to what the director approved, and it costs nothing.