Free, browser-based display tools
Bart Television runs entirely in your browser. The dead pixel test cycles solid colors across the full screen so you can spot stuck or dead sub-pixels. The burn-in fixer plays a brief sequence of strobing colors that some users run on OLED and plasma panels to reduce mild image retention. Both tools open fullscreen and can be exited at any time with the Escape key.
Below the tools, you'll find an ambient video directory — short, looping clips that work as background visuals on bar, lounge, and waiting-room screens. Pick a category to filter, click a thumbnail to open the loop in a player.
Ambient Video Directory
Filter by category. Each thumbnail opens an embedded YouTube player set to loop.
About these tools
Dead pixel test
A dead pixel is a pixel that no longer changes state — it stays black or a single color regardless of the image. A stuck pixel is similar but often shows one of the primary sub-pixel colors (red, green, or blue). Cycling solid full-screen colors is the standard way to identify either: against a uniform field, a faulty pixel reads as an obvious dot.
The test cycles red, green, blue, white, and black. Click or press any key to advance to the next color. For a deeper explanation of causes and remedies, see the dead pixel guide.
Burn-in fixer
Burn-in, more accurately called image retention, happens when a static image is displayed for so long that its outline becomes faintly visible after the content changes. It is most common on OLED and plasma panels and largely a non-issue on modern LCDs. Rapid color cycling is one informal remedy that some owners try for mild cases.
The fixer flashes high-contrast colors at a fast pace. Because rapid flashing can trigger seizures in people with photosensitive epilepsy, the tool shows a confirmation prompt before starting. For background and prevention guidance, see the burn-in guide.
Ambient video directory
The directory currently focuses on nature and abstract loops — material that holds up as background visuals without demanding attention. Each entry links to a full YouTube video, so the source channel keeps credit and watch time.
Choosing the right loop for a venue is more involved than it looks: aspect ratio, sound design, license terms, and brightness all matter. The ambient video guide walks through the criteria.
Last reviewed on 2026-06-03.
Frequently asked questions
How do I test my TV or monitor for dead pixels?
Open the Dead Pixel Test at the top of this page. It fills the screen with pure red, green, blue, white, and black in turn — click or press a key to advance. A faulty sub-pixel shows up as an out-of-place dot against the flat color. Run it at full brightness, and wipe the panel first so dust isn't mistaken for a defect. The dead pixel guide explains how to read the result.
Is the burn-in fixer safe to use?
The fixer uses rapid, high-contrast color flashing, which can trigger seizures in people with photosensitive epilepsy — that's why it shows a warning before it starts. If you're sensitive to flashing light, do not run it. For everyone else it is harmless to the panel; keep sessions short. See the disclaimer for the full caution.
Can color cycling actually remove burn-in?
Sometimes, for mild cases. True burn-in — permanent wear on OLED or plasma sub-pixels — cannot be reversed by software. What color cycling can help with is image retention, a temporary ghost of a static image that often clears on its own. The burn-in guide covers the difference and what genuinely prevents it.
What kind of video should I put on a bar or lounge TV?
Calm, slow-moving loops that sit behind conversation without demanding attention — nature, cityscapes, and abstract visuals all work. Watch the loop length, audio, and licensing before you commit a screen to it. Browse the ambient video directory above, and read choosing ambient video for the selection criteria.
Do I need a commercial display, or will a regular TV do?
A consumer TV is fine for many venues, but commercial signage panels are built for long daily run times, higher brightness, and landscape-or-portrait mounting. If a screen runs 12+ hours a day or sits in direct sun, the premium can pay off. The signage vs. consumer TV guide weighs the trade-offs.
Will running a TV all day in a bar cause burn-in?
Modern LCD/LED TVs are very resistant to burn-in; OLEDs are more vulnerable to static elements like channel logos or scoreboards left on screen for hours. Varying the content, lowering brightness, and avoiding fixed graphics all reduce the risk. The OLED vs. LCD guide explains which panel suits long venue hours.