To start YouTube TV and enter the code, you usually do it on your TV screen first , then type that code on your phone or computer.

Where the code appears

  • Open the YouTube TV app on your smart TV, streaming stick, or game console.
  • On the TV, go to Settings → Link with TV code (or similar wording); a short blue code will appear on‑screen.

Where to enter the code

  • On your phone or tablet , open the YouTube app (not YouTube TV), tap your profile picture → Settings → Watch on TV → Enter TV code.
  • On a computer , go to tv.youtube.com/start , then type the code shown on your TV into the box there.

Quick checklist if it’s not working

  • Make sure both devices are on the same Wi‑Fi network.
  • If the code expires or fails, refresh it on the TV (Settings → Link with TV code again) and re‑enter it on your phone or at tv.youtube.com/start.

If you tell me your exact device (e.g., Samsung TV, Roku, Fire Stick, PlayStation), I can walk you through the exact menu path for that model.