I have just had a Samsung QE49Q6FNAT TV installed. How can I set it up so that on switch on it is connected directly/automatically via the HDMI to my Humax FREESAT box? This worked well on my previous system, but not sure how I set it up for new TV above.
I think you are looking for the CEC feature which on a Samsung TV is called Anynet+.
Mind, I don’t like CEC as it can be flaky between two devices from different manufacturers and prefer to use a Harmony universal remote control to handle this kind of thing.