https://helpforum.sky.com/t5/Broadband/Faint-lines-on-black-TV-screen-after-getting-fibre-upgrade/m-p/5046933#M506281 <P><a href="https://helpforum.sky.com/t5/user/viewprofilepage/user-id/4200865">@Nawwti</a>&nbsp;technically switching too fibre makes no difference to the digital data feed to the TVs.so I suspect the affect is co-incidental. &nbsp;I would raise the issue with Sky but strongly doubt your new optical feed is the cause.&nbsp;</P> Tue, 29 Jul 2025 06:14:33 GMT Chrisee 2025-07-29T06:14:33Z https://helpforum.sky.com/t5/Broadband/Faint-lines-on-black-TV-screen-after-getting-fibre-upgrade/m-p/5046871#M506256 <P>Moved to fibre last week, sky glass tv. TV now has vertical lines down the screen on black or blue backgrounds about 1 inch wide, watching programmes is fine but you can see it on the menus &amp; screens with lots of plain colour.</P><P>&nbsp;</P><P>Thought it was the TV but tonight I've noticed the upstairs TV is the same - downstairs is sky glass &amp; upstairs is sky puck, so both run directly on the fibre, &amp; it's a recent thing so likely after the fibre upgrade.</P><P>&nbsp;</P><P>They aren't there on programmes, so I'm a bit stumped. Any ideas? Cheers</P> Mon, 28 Jul 2025 21:49:46 GMT https://helpforum.sky.com/t5/Broadband/Faint-lines-on-black-TV-screen-after-getting-fibre-upgrade/m-p/5046871#M506256 Nawwti 2025-07-28T21:49:46Z https://helpforum.sky.com/t5/Broadband/Faint-lines-on-black-TV-screen-after-getting-fibre-upgrade/m-p/5046933#M506281 <P><a href="https://helpforum.sky.com/t5/user/viewprofilepage/user-id/4200865">@Nawwti</a>&nbsp;technically switching too fibre makes no difference to the digital data feed to the TVs.so I suspect the affect is co-incidental. &nbsp;I would raise the issue with Sky but strongly doubt your new optical feed is the cause.&nbsp;</P> Tue, 29 Jul 2025 06:14:33 GMT https://helpforum.sky.com/t5/Broadband/Faint-lines-on-black-TV-screen-after-getting-fibre-upgrade/m-p/5046933#M506281 Chrisee 2025-07-29T06:14:33Z