Open the site in the TV’s browser

On Samsung (Tizen), LG (webOS), Android TV / Google TV, Hisense, and many Fire TV models, open the built-in web browser, go to karaokemo, and tap Start karaoke screen. Use the remote to focus the button, then press OK. The on-screen hint is written for that click-then-OK path.

Type the address carefully. A search-box “karaokemo” result inside a TV app store is not the karaoke screen. You want the website.

Unlock sound once

Smart TV browsers often block a video from playing with sound until there is a user gesture. After the screen loads, start a short test track and press OK on the player if you see a play icon or a mute prompt. Leave that tab in the foreground. Switching apps mid-song is how rooms “randomly” go silent.

Full-screen and readability

Use the browser’s full-screen if it has one, and sit where guests will stand. If lyrics are small, you need a closer seating line or a laptop on HDMI with a desktop browser — those usually scale the player better than a five-year-old TV browser.

HDMI laptop is the reliable fallback

If the TV browser will not autoplay, cannot show the QR clearly, or drops the embed, connect a laptop. Start the karaoke screen there, full-screen the tab, and hide the laptop lid only if the TV stays the display (clamshell). Phones still join the same Screen ID.

Chromecast / AirPlay of a phone browser is a weaker option: the phone becomes the stage, the battery dies, and notifications interrupt songs. Prefer a dedicated screen device.

Audio

Route TV audio to the soundbar or AVR the way you already watch movies. karaokemo does not replace that path. If YouTube on the TV already has sound in the YouTube app but not in the browser, that points back to autoplay or the browser — not a missing “karaoke output” toggle.

Keep the TV awake

Many TVs treat a web page as idle. A screensaver or HDMI-CEC power-off will look like karaokemo “crashed.” Raise the sleep timeout for the night, or tap the remote once between songs if you must. An HDMI laptop with the lid closed (clamshell, lid closed, TV as display) still needs the laptop set not to sleep.

Brand-specific notes we actually see

Samsung (Tizen). Use the built-in Internet browser, not an app-store search result named something like karaoke. Type the site address. After start, OK on the player once.

LG (webOS) and Android TV / Google TV. Same pattern. If the default browser cannot keep a YouTube embed alive for an hour, HDMI a laptop. Fighting the TV for ninety minutes is not a setting you missed.

Fire TV. Silk can load the site; it is also happy to drop media. Prefer HDMI if you have seen Silk fail on other video sites.

The YouTube app on the TV is not karaokemo. It has no Screen ID, no guest remotes, and no shared queue. Do not start the night there and expect phones to connect.

Picture on the TV, sound from the wrong box

HDMI-ARC and CEC are handy when they already work for movies. They fail karaoke nights when the browser plays video on the panel and audio on the tiny TV speakers while the soundbar stays idle. Play a thirty-second test and walk to the bar. If it is quiet, change the TV’s audio output before anyone sings. karaokemo has no “send to soundbar” switch. It uses whatever path that browser already has.

Laptop-on-HDMI has the same trap in reverse: picture on the TV, sound still on the laptop. Set the laptop’s output to the HDMI display, or you will host a night only you can hear. More on levels and mics: room layout and volume.

When the TV browser is the wrong tool

Some built-in browsers cannot play YouTube embeds reliably, crash after an hour, or refuse full-screen. That is a TV limitation, not a missing karaokemo setting. Switch to HDMI and keep the Screen ID. If you start a fresh screen you get a new Screen ID and guests must rejoin, so try to stay on one room for the night.

More failure cases live in Troubleshooting. For the guest flow after the picture works, see How it works.