My TV keeps closing down and giving a "no signal" message and then has to restart. This happens sometimes 5 times an hour! This has been happening for the past week. It is not my internet connection as I still have internet on my other devices. I have a Samsung Virgin Media box. I have reset the wifi but this makes no difference.
What makes you so sure its not an internet issue, just because other devices that don't require such a strong stable signal work it has no bearing on your TV box, more details who be helpful, what box how is it connected to your hub etc.