I have already some USB tuners at home, but I will be sure to get them work with the ET4000. Or with an other receiver, there are so many between 100 and 150 Euros.
thank you for your answer. Are you sure about this? I have a VU+ Ultimo with 400 MHz CPU which works fine with USB tuner, it seems the ET4000 has at least the same CPU power.
Maybe you could recommend a box with the features I need and with a price around the Xtrend one's?