https://helpforum.sky.com/t5/Sky-Q/Help/m-p/5192828#M725446 <BLOCKQUOTE><HR /><a href="https://helpforum.sky.com/t5/user/viewprofilepage/user-id/3466957">@Somat97</a>&nbsp;wrote:<BR />I changed my extension box&nbsp;<HR /></BLOCKQUOTE><P>What's an 'extension box'?</P> Sat, 17 Jan 2026 14:21:56 GMT PandJ2020 2026-01-17T14:21:56Z https://helpforum.sky.com/t5/Sky-Q/Help/m-p/5192783#M725436 I changed my extension box to my tv and sky box and now have no tv picture or sound. Power going to tv but not responding to anything Sat, 17 Jan 2026 13:29:15 GMT https://helpforum.sky.com/t5/Sky-Q/Help/m-p/5192783#M725436 Somat97 2026-01-17T13:29:15Z https://helpforum.sky.com/t5/Sky-Q/Help/m-p/5192828#M725446 <BLOCKQUOTE><HR /><a href="https://helpforum.sky.com/t5/user/viewprofilepage/user-id/3466957">@Somat97</a>&nbsp;wrote:<BR />I changed my extension box&nbsp;<HR /></BLOCKQUOTE><P>What's an 'extension box'?</P> Sat, 17 Jan 2026 14:21:56 GMT https://helpforum.sky.com/t5/Sky-Q/Help/m-p/5192828#M725446 PandJ2020 2026-01-17T14:21:56Z