Do not install 617 or 740 in 2026. Instead, find the latest build of Smart YouTube TV (6.26.x or newer) from a trusted GitHub repository (e.g., yuliskov ). If your TV cannot run that, buy a $20–30 streaming device for a modern ad-free YouTube experience.

| Feature | Version 617 | Version 740 | |---------|-------------|--------------| | | Mid-2021 | Late 2021 / Early 2022 | | Ad blocking | Excellent (native) | Excellent (native) | | Background play | Yes | Yes | | SponsorBlock | No (added in later versions) | Partial (early implementation) | | Login stability | Very stable | Slightly buggy with Google’s 2022+ API changes | | 4K playback | Yes (on supported hardware) | Yes | | Subtitle sync | Rare issues | Generally better | | Known quirk | May show "Update required" nag | May crash on LG webOS 6+ |

Older "Smart TV" platforms (pre-2017) may use outdated versions of the YouTube Leanback interface that no longer support modern pairing tokens.

The numbers and 740 refer to specific build/version numbers of this app, not separate products. These are legacy or development branch versions often discussed in forums (like Reddit or XDA Developers) for stability or feature differences.

[GitHub / official mirror — add link if allowed ]

Your or streaming device (e.g., Samsung, Roku, Firestick). If you see an error message when entering the code.

Open the app and follow the on-screen instructions to link your YouTube account via a web code. 💡 Troubleshooting Common Issues If your player stops working or buffers: