Thanks for your comments and the debate

. As for the SHub, I put that back to being modem only as even with its upgraded firmware, it is still a very average wireless router with poor capability even at distances inside a large room.
So, the TV is looking at/for the SSID for the new TP-Link WR1042ND router I connected from the SHub.
There have been no responses to my query in the Toshiba Help Forums.
As everything else can see the SSID, possibly the TV is faulty, I bought it from Comet 1 week before its liquidation

. Although they will honour their responsibility for repairs, it won't be quick.
Or maybe there is some quirky setting they assume people know what to do and so do not mention it in the instructions - as often happens.
Rgds Jonathan
---------- Post added at 23:38 ---------- Previous post was at 23:30 ----------
Sorry, I did not notice the reply from Ferrtuk when I replied above.
Yes, I did press the WPS button and the WPS light is on.
Thanks for the link to the Toshiba manual, far more detailed than the one I was provided. I will go through that and revert back with what happens.
Regards Jonathan