Odd that thing even works at the price, in the notes it tells you it does not work with cable boxes which looks like your Talk Talk is.
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NOTE:
Does NOT support any video game (PlayStation, Xbox etc.) and any TV box / cable box (e.g. Sky TV box, BT TV box, Amazon TV, Google Chromecast, Apple TV box, Now TV, Android TV box, Freeview TV Box, Roku etc.) any DVR and PC.
Only 1 output device should be active at any time unless both of the 2 display devices share the same size and model.
Only 1 output device should be active at any time, you can only connect one input device (eg. DVD player) to two HDMI output device (eg. TV), but only oneoutput device should be active at any time. You cannot connect two output device at the same time.
It can simultaneously connect and display two computer monitors with the same signal and size. Also, it supports most simultaneous display when connecting different models and sizes with few exceptions. However, the two interfaces are available. It is undeniable that there is a very few devices are incompatible. So please carefully choose!
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